[KOE-168] Restored send-as editor in shared folder dialog

src/AcaciaZPushPlugin/AcaciaZPushPlugin.sln

@@ -1,7 +1,7 @@
 
 Microsoft Visual Studio Solution File, Format Version 12.00
 # Visual Studio 14
-VisualStudioVersion = 14.0.25123.0
+VisualStudioVersion = 14.0.25420.1
 MinimumVisualStudioVersion = 10.0.40219.1
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "AcaciaZPushPlugin", "AcaciaZPushPlugin\AcaciaZPushPlugin.csproj", "{1A7427A5-F814-4B07-98B2-C67D758B65D6}"
 EndProject
@@ -13,40 +13,56 @@ Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "EASAccount", "EASAccount\EA
 EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
 		Debug|x64 = Debug|x64
 		Debug|x86 = Debug|x86
+		Release|Any CPU = Release|Any CPU
 		Release|x64 = Release|x64
 		Release|x86 = Release|x86
 	EndGlobalSection
 	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{1A7427A5-F814-4B07-98B2-C67D758B65D6}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{1A7427A5-F814-4B07-98B2-C67D758B65D6}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{1A7427A5-F814-4B07-98B2-C67D758B65D6}.Debug|x64.ActiveCfg = Debug|Any CPU
 		{1A7427A5-F814-4B07-98B2-C67D758B65D6}.Debug|x64.Build.0 = Debug|Any CPU
 		{1A7427A5-F814-4B07-98B2-C67D758B65D6}.Debug|x86.ActiveCfg = Debug|Any CPU
 		{1A7427A5-F814-4B07-98B2-C67D758B65D6}.Debug|x86.Build.0 = Debug|Any CPU
+		{1A7427A5-F814-4B07-98B2-C67D758B65D6}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{1A7427A5-F814-4B07-98B2-C67D758B65D6}.Release|Any CPU.Build.0 = Release|Any CPU
 		{1A7427A5-F814-4B07-98B2-C67D758B65D6}.Release|x64.ActiveCfg = Release|Any CPU
 		{1A7427A5-F814-4B07-98B2-C67D758B65D6}.Release|x64.Build.0 = Release|Any CPU
 		{1A7427A5-F814-4B07-98B2-C67D758B65D6}.Release|x86.ActiveCfg = Release|Any CPU
 		{1A7427A5-F814-4B07-98B2-C67D758B65D6}.Release|x86.Build.0 = Release|Any CPU
+		{9258AD17-0A25-4669-A95C-93EC70882551}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{9258AD17-0A25-4669-A95C-93EC70882551}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{9258AD17-0A25-4669-A95C-93EC70882551}.Debug|x64.ActiveCfg = Debug|Any CPU
 		{9258AD17-0A25-4669-A95C-93EC70882551}.Debug|x64.Build.0 = Debug|Any CPU
 		{9258AD17-0A25-4669-A95C-93EC70882551}.Debug|x86.ActiveCfg = Debug|Any CPU
 		{9258AD17-0A25-4669-A95C-93EC70882551}.Debug|x86.Build.0 = Debug|Any CPU
+		{9258AD17-0A25-4669-A95C-93EC70882551}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{9258AD17-0A25-4669-A95C-93EC70882551}.Release|Any CPU.Build.0 = Release|Any CPU
 		{9258AD17-0A25-4669-A95C-93EC70882551}.Release|x64.ActiveCfg = Release|Any CPU
 		{9258AD17-0A25-4669-A95C-93EC70882551}.Release|x64.Build.0 = Release|Any CPU
 		{9258AD17-0A25-4669-A95C-93EC70882551}.Release|x86.ActiveCfg = Release|Any CPU
 		{9258AD17-0A25-4669-A95C-93EC70882551}.Release|x86.Build.0 = Release|Any CPU
+		{222C4DA5-FA31-471A-B127-5E0C6AD2CB3C}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{222C4DA5-FA31-471A-B127-5E0C6AD2CB3C}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{222C4DA5-FA31-471A-B127-5E0C6AD2CB3C}.Debug|x64.ActiveCfg = Debug|Any CPU
 		{222C4DA5-FA31-471A-B127-5E0C6AD2CB3C}.Debug|x64.Build.0 = Debug|Any CPU
 		{222C4DA5-FA31-471A-B127-5E0C6AD2CB3C}.Debug|x86.ActiveCfg = Debug|Any CPU
 		{222C4DA5-FA31-471A-B127-5E0C6AD2CB3C}.Debug|x86.Build.0 = Debug|Any CPU
+		{222C4DA5-FA31-471A-B127-5E0C6AD2CB3C}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{222C4DA5-FA31-471A-B127-5E0C6AD2CB3C}.Release|Any CPU.Build.0 = Release|Any CPU
 		{222C4DA5-FA31-471A-B127-5E0C6AD2CB3C}.Release|x64.ActiveCfg = Release|Any CPU
 		{222C4DA5-FA31-471A-B127-5E0C6AD2CB3C}.Release|x64.Build.0 = Release|Any CPU
 		{222C4DA5-FA31-471A-B127-5E0C6AD2CB3C}.Release|x86.ActiveCfg = Release|Any CPU
 		{222C4DA5-FA31-471A-B127-5E0C6AD2CB3C}.Release|x86.Build.0 = Release|Any CPU
+		{437F3764-1E65-4AED-88FA-7C5B2F2FAF15}.Debug|Any CPU.ActiveCfg = Debug|Win32
 		{437F3764-1E65-4AED-88FA-7C5B2F2FAF15}.Debug|x64.ActiveCfg = Debug|x64
 		{437F3764-1E65-4AED-88FA-7C5B2F2FAF15}.Debug|x64.Build.0 = Debug|x64
 		{437F3764-1E65-4AED-88FA-7C5B2F2FAF15}.Debug|x86.ActiveCfg = Debug|Win32
 		{437F3764-1E65-4AED-88FA-7C5B2F2FAF15}.Debug|x86.Build.0 = Debug|Win32
+		{437F3764-1E65-4AED-88FA-7C5B2F2FAF15}.Release|Any CPU.ActiveCfg = Release|Win32
 		{437F3764-1E65-4AED-88FA-7C5B2F2FAF15}.Release|x64.ActiveCfg = Release|x64
 		{437F3764-1E65-4AED-88FA-7C5B2F2FAF15}.Release|x64.Build.0 = Release|x64
 		{437F3764-1E65-4AED-88FA-7C5B2F2FAF15}.Release|x86.ActiveCfg = Release|Win32

src/AcaciaZPushPlugin/AcaciaZPushPlugin/AcaciaZPushPlugin.csproj

@@ -716,7 +716,7 @@
     <ManifestKeyFile>AcaciaZPushPlugin_TemporaryKey.pfx</ManifestKeyFile>
   </PropertyGroup>
   <PropertyGroup>
-    <ManifestCertificateThumbprint>91DA5A4637DF29EDFBF913FB2B93606C114DE41E</ManifestCertificateThumbprint>
+    <ManifestCertificateThumbprint>06D94ECE2D1D6491E3EC12981F3571DEA7A53421</ManifestCertificateThumbprint>
   </PropertyGroup>
   <PropertyGroup>
     <SignAssembly>false</SignAssembly>
@@ -729,7 +729,7 @@
   <ProjectExtensions>
     <VisualStudio>
       <FlavorProperties GUID="{BAA0C2D2-18E2-41B9-852F-F413020CAA33}">
-        <ProjectProperties HostName="Outlook" HostPackage="{29A7B9D7-A7F1-4328-8EF0-6B2D1A56B2C1}" OfficeVersion="15.0" VstxVersion="4.0" ApplicationType="Outlook" Language="cs" TemplatesPath="" DebugInfoExeName="#Software\Microsoft\Office\16.0\Outlook\InstallRoot\Path#outlook.exe" AddItemTemplatesGuid="{A58A78EB-1C92-4DDD-80CF-E8BD872ABFC4}" />
+        <ProjectProperties HostName="Outlook" HostPackage="{29A7B9D7-A7F1-4328-8EF0-6B2D1A56B2C1}" OfficeVersion="16.0" VstxVersion="4.0" ApplicationType="Outlook" Language="cs" TemplatesPath="" DebugInfoExeName="#Software\Microsoft\Office\16.0\Outlook\InstallRoot\Path#outlook.exe" AddItemTemplatesGuid="{A58A78EB-1C92-4DDD-80CF-E8BD872ABFC4}" />
         <Host Name="Outlook" GeneratedCodeNamespace="Acacia" IconIndex="0">
           <HostItem Name="ThisAddIn" Code="ThisAddIn.cs" CanonicalName="AddIn" CanActivate="false" IconIndex="1" Blueprint="ThisAddIn.Designer.xml" GeneratedCode="ThisAddIn.Designer.cs" />
         </Host>

src/AcaciaZPushPlugin/AcaciaZPushPlugin/Features/ReplyFlags/FeatureReplyFlags.cs

@@ -180,7 +180,7 @@ namespace Acacia.Features.ReplyFlags
             string id = (string)mail.GetProperty(OutlookConstants.PR_ZPUSH_MESSAGE_ID);
             using (IFolder folder = mail.Parent)
             {
-                string folderId = (string)folder.GetProperty(OutlookConstants.PR_ZPUSH_FOLDER_ID);
+                string folderId = (string)folder.GetProperty(OutlookConstants.PR_ZPUSH_SYNC_ID);
                 string value = ReplyFlags.VerbToExchange(verb) + "/" + id + "/" + folderId;
                 Logger.Instance.Trace(this, "Reply header: {0}", value);
                 response.SetProperty(Constants.ZPUSH_REPLY_HEADER, value);

src/AcaciaZPushPlugin/AcaciaZPushPlugin/Features/SendAs/FeatureSendAs.cs

@@ -1,4 +1,4 @@
-/// Copyright 2017 Kopano b.v.
+/// Copyright 2018 Kopano b.v.
 /// 
 /// This program is free software: you can redistribute it and/or modify
 /// it under the terms of the GNU Affero General Public License, version 3,
@@ -34,20 +34,12 @@ namespace Acacia.Features.SendAs
     {
         private FeatureSharedFolders _sharedFolders;
 
+        #region Init
+
         public FeatureSendAs()
         {
         }
 
-        [AcaciaOption("Disables the \"Send As Owner\" feature. This feature allows sending as the owner of a shared folder, " +
-                      "when responding to messages in that folder. Note that this feature requires SharedFolders to be " +
-                      "enabled")]
-        public bool SendAsOwner
-        {
-            get { return GetOption(OPTION_SEND_AS_OWNER); }
-            set { SetOption(OPTION_SEND_AS_OWNER, value); }
-        }
-        private static readonly BoolOption OPTION_SEND_AS_OWNER = new BoolOption("SendAsOwner", true);
-
         public override void Startup()
         {
             if (MailEvents != null)
@@ -69,48 +61,19 @@ namespace Acacia.Features.SendAs
             }
         }
 
-        private void MailEvents_Respond(IMailItem mail, IMailItem response)
+        #endregion
+
+        #region Options
+
+        [AcaciaOption("Disables the \"Send As Owner\" feature. This feature allows sending as the owner of a shared folder, " +
+                      "when responding to messages in that folder. Note that this feature requires SharedFolders to be " +
+                      "enabled")]
+        public bool SendAsOwner
         {
-            Logger.Instance.Trace(this, "Responding to mail, checking");
+            get { return GetOption(OPTION_SEND_AS_OWNER); }
-            using (IStore store = mail.GetStore())
+            set { SetOption(OPTION_SEND_AS_OWNER, value); }
-            {
-                ZPushAccount zpush = Watcher.Accounts.GetAccount(store);
-                Logger.Instance.Trace(this, "Checking ZPush: {0}", zpush);
-                if (zpush != null)
-                {
-                    // Check if the containing folder is a shared folder
-                    using (IFolder parent = mail.Parent)
-                    {
-                        Logger.Instance.Trace(this, "Checking, Parent folder: {0}", parent.Name);
-                        SharedFolder shared = _sharedFolders.GetSharedFolder(parent);
-                        if (shared != null)
-                            Logger.Instance.Trace(this, "Checking, Shared folder: {0}, flags={1}", shared, shared?.Flags);
-                        else
-                            Logger.Instance.Trace(this, "Not a shared folder");
-                        if (shared != null && shared.FlagSendAsOwner)
-                        {
-                            Logger.Instance.Trace(this, "Checking, Shared folder owner: {0}", shared.Store.UserName);
-                            // It's a shared folder, use the owner as the sender if possible
-                            using (IRecipient recip = FindSendAsSender(zpush, shared.Store))
-                            {
-                                if (recip != null && recip.IsResolved)
-                                {
-                                    Logger.Instance.Trace(this, "Sending as: {0}", recip.Address);
-                                    using (IAddressEntry address = recip.GetAddressEntry())
-                                    {
-                                        response.SetSender(address);
-                                    }
-                                }
-                                else
-                                {
-                                    Logger.Instance.Error(this, "Unable to resolve sender: {0}", shared.Store.UserName);
-                                }
-                            }
-                        }
-                    }
-                }
-            }
         }
+        private static readonly BoolOption OPTION_SEND_AS_OWNER = new BoolOption("SendAsOwner", true);
 
         [AcaciaOption("Disables GAB look ups for senders. GAB lookups are required if a username exists on different accounts, " +
                       "as in that case Outlook fails to determine the email address of the sender.")]
@@ -130,65 +93,48 @@ namespace Acacia.Features.SendAs
         }
         private static readonly BoolOption OPTION_RESOLVE_LOCAL = new BoolOption("ResolveLocal", false);
 
-        internal IRecipient FindSendAsSender(ZPushAccount zpush, GABUser user)
+        #endregion
+
+        #region Event handlers
+
+        /// <summary>
+        /// Responding event handler. Checks if a send-as address must be specified.
+        /// </summary>
+        /// <param name="mail"></param>
+        /// <param name="response"></param>
+        private void MailEvents_Respond(IMailItem mail, IMailItem response)
         {
-            // First try a simple resolve, this will work if the username is unique
+            Logger.Instance.Trace(this, "Responding to mail, checking");
-            if (ResolveLocal)
+            using (IStore store = mail.GetStore())
             {
-                IRecipient recip = ThisAddIn.Instance.ResolveRecipient(user.UserName);
+                /*
-                if (recip != null)
+                ZPushAccount zpush = Watcher.Accounts.GetAccount(store);
-                {
+                Logger.Instance.Trace(this, "Checking ZPush: {0}", zpush);
-                    // If it's resolved, we're good. Otherwise dispose and continue
+                if (zpush == null)
-                    if (recip.IsResolved)
+                    return;
-                    {
-                        Logger.Instance.Trace(this, "Resolved send-as: {0}", recip.Name);
-                        return recip;
-                    }
-                    else
-                    {
-                        Logger.Instance.Trace(this, "Unresolved send-as: {0}", user.UserName);
-                        recip.Dispose();
-                    }
-                }
-            }
 
-            // Search through GAB to find the user
+                // Check if the containing folder is a shared folder
-            if (GABLookup)
+                using (IFolder parent = mail.Parent)
-            {
+                using (IRecipient recip = FindSendAsSender(zpush, parent))
-                GABHandler handler = FeatureGAB.FindGABForAccount(zpush);
-                if (handler != null && handler.Contacts != null)
                 {
-                    // Look for the email address. If found, use the account associated with the GAB
+                    if (recip == null || !recip.IsResolved)
-                    using (ISearch<IContactItem> search = handler.Contacts.Search<IContactItem>())
+                        return;
-                    {
-                        search.AddField("urn:schemas:contacts:customerid").SetOperation(SearchOperation.Equal, user.UserName);
-                        using (IContactItem result = search.SearchOne())
-                        {
-                            Logger.Instance.Trace(this, "GAB Search for send-as {0}: {1}", zpush, result);
-                            if (result != null)
-                            {
-                                // Try resolving by email
-                                Logger.Instance.Trace(this, "Resolving send-as by email address {0}: {1}", user.UserName, result.Email1Address);
-                                return ThisAddIn.Instance.ResolveRecipient(result.Email1Address);
-                            }
-                        }
-                    }
-                }
-                else
-                {
-                    Logger.Instance.Trace(this, "GAB handler not found for account: {0}", zpush);
-                }
 
-                Logger.Instance.Warning(this, "Unable to resolve send-as: {0}", user.UserName);
+                    // Set the sender
-                return null;
+                    Logger.Instance.Trace(this, "Sending as: {0}", recip.Address);
-            }
+                    using (IAddressEntry address = recip.GetAddressEntry())
-            else
+                    {
-            {
+                        response.SetSender(address);
-                Logger.Instance.Warning(this, "Unable to resolve send-as and GABLookup disabled: {0}", user.UserName);
+                    }
-                return null;
+                }*/
             }
         }
 
+        /// <summary>
+        /// Sending event handler. Sets the Z-Push header to allow it to determine the send-as sender.
+        /// </summary>
+        /// <param name="item"></param>
+        /// <param name="cancel"></param>
         private void MailEvents_ItemSend(IMailItem item, ref bool cancel)
         {
             using (IStore store = item.GetStore())
@@ -207,5 +153,41 @@ namespace Acacia.Features.SendAs
                 }
             }
         }
+
+        #endregion
+
+        #region Address resolving
+
+        public string FindSendAsAddress(ZPushAccount zpush, GABUser user)
+        {
+            GABHandler handler = FeatureGAB.FindGABForAccount(zpush);
+            if (handler != null && handler.Contacts != null)
+            {
+                // Look for the email address. If found, use the account associated with the GAB
+                using (ISearch<IContactItem> search = handler.Contacts.Search<IContactItem>())
+                {
+                    search.AddField("urn:schemas:contacts:customerid").SetOperation(SearchOperation.Equal, user.UserName);
+                    using (IContactItem result = search.SearchOne())
+                    {
+                        Logger.Instance.Trace(this, "GAB Search for send-as {0}: {1}", zpush, result);
+                        if (result != null)
+                        {
+                            // Try resolving by email
+                            Logger.Instance.Trace(this, "Resolving send-as by email address {0}: {1}", user.UserName, result.Email1Address);
+                            return result.Email1Address;
+                        }
+                    }
+                }
+            }
+            else
+            {
+                Logger.Instance.Warning(this, "GAB handler not found for account: {0}", zpush);
+            }
+
+            Logger.Instance.Warning(this, "Unable to resolve send-as: {0}", user.UserName);
+            return null;
+        }
+
+        #endregion
     }
 }

src/AcaciaZPushPlugin/AcaciaZPushPlugin/Features/SharedFolders/FeatureSharedFolders.cs

@@ -1,5 +1,6 @@
 
 using Acacia.Features.SecondaryContacts;
+using Acacia.Features.SendAs;
 /// Copyright 2016 Kopano b.v.
 /// 
 /// This program is free software: you can redistribute it and/or modify
@@ -154,6 +155,11 @@ namespace Acacia.Features.SharedFolders
                 Dictionary<SyncId, SharedFolder> dict = shares.ToDictionary(x => x.SyncId);
                 Logger.Instance.Trace(this, "AdditionalFolders_Sync2: {0}", shares.Count);
 
+                // Store any send-as properties
+                FeatureSendAs sendAs = ThisAddIn.Instance.GetFeature<FeatureSendAs>();
+                // TODO
+                //sendAs?.UpdateSendAsAddresses(connection.Account, shares);
+
                 // Store with the account
                 connection.Account.SetFeatureData(this, KEY_SHARES, dict);
             }
@@ -191,7 +197,7 @@ namespace Acacia.Features.SharedFolders
 
         public static bool IsSharedFolder(IFolder folder)
         {
-            string id = (string)folder.GetProperty(OutlookConstants.PR_ZPUSH_FOLDER_ID);
+            string id = (string)folder.GetProperty(OutlookConstants.PR_ZPUSH_SYNC_ID);
             return id?.StartsWith("S") == true;
         }
 
@@ -454,6 +460,8 @@ namespace Acacia.Features.SharedFolders
 
         #endregion
 
+        #region Shared stores
+
         public void RemoveSharedStore(ZPushAccount account, GABUser shareUser)
         {
             // Find the store
@@ -485,5 +493,8 @@ namespace Acacia.Features.SharedFolders
                 Logger.Instance.Error(this, "Error removing shared store: {0}: {1}", share, e);
             }
         }
+
+        #endregion
+
     }
 }

src/AcaciaZPushPlugin/AcaciaZPushPlugin/Features/SharedFolders/SharedFoldersDialog.Designer.cs

@@ -45,11 +45,13 @@
             this.textName = new System.Windows.Forms.TextBox();
             this._labelSendAs = new System.Windows.Forms.Label();
             this.checkSendAs = new System.Windows.Forms.CheckBox();
+            this._labelSendAsAddress = new System.Windows.Forms.Label();
+            this.textSendAsAddress = new System.Windows.Forms.TextBox();
             this._labelReminders = new System.Windows.Forms.Label();
             this.checkReminders = new System.Windows.Forms.CheckBox();
             this._labelPermissions = new System.Windows.Forms.Label();
-            this.dialogButtons = new Acacia.Controls.KDialogButtons();
             this._labelRestartRequired = new System.Windows.Forms.Label();
+            this.dialogButtons = new Acacia.Controls.KDialogButtons();
             this._layout.SuspendLayout();
             this._mainBusyHider.SuspendLayout();
             this._layoutMain.SuspendLayout();
@@ -137,14 +139,16 @@
             resources.ApplyResources(this._layoutOptions, "_layoutOptions");
             this._layoutOptions.Controls.Add(this._labelWholeStore, 0, 0);
             this._layoutOptions.Controls.Add(this.checkWholeStore, 1, 0);
-            this._layoutOptions.Controls.Add(this.labelPermissionsValue, 1, 4);
+            this._layoutOptions.Controls.Add(this.labelPermissionsValue, 1, 5);
             this._layoutOptions.Controls.Add(this._labelName, 0, 1);
             this._layoutOptions.Controls.Add(this.textName, 1, 1);
             this._layoutOptions.Controls.Add(this._labelSendAs, 0, 2);
             this._layoutOptions.Controls.Add(this.checkSendAs, 1, 2);
-            this._layoutOptions.Controls.Add(this._labelReminders, 0, 3);
+            this._layoutOptions.Controls.Add(this._labelSendAsAddress, 0, 3);
-            this._layoutOptions.Controls.Add(this.checkReminders, 1, 3);
+            this._layoutOptions.Controls.Add(this.textSendAsAddress, 1, 3);
-            this._layoutOptions.Controls.Add(this._labelPermissions, 0, 4);
+            this._layoutOptions.Controls.Add(this._labelReminders, 0, 4);
+            this._layoutOptions.Controls.Add(this.checkReminders, 1, 4);
+            this._layoutOptions.Controls.Add(this._labelPermissions, 0, 5);
             this._layoutOptions.Controls.Add(this._labelRestartRequired, 2, 0);
             this._layoutOptions.Name = "_layoutOptions";
             // 
@@ -192,6 +196,18 @@
             this.checkSendAs.UseVisualStyleBackColor = true;
             this.checkSendAs.CheckedChanged += new System.EventHandler(this.checkSendAs_CheckedChanged);
             // 
+            // _labelSendAsAddress
+            // 
+            resources.ApplyResources(this._labelSendAsAddress, "_labelSendAsAddress");
+            this._labelSendAsAddress.Name = "_labelSendAsAddress";
+            // 
+            // textSendAsAddress
+            // 
+            this._layoutOptions.SetColumnSpan(this.textSendAsAddress, 2);
+            resources.ApplyResources(this.textSendAsAddress, "textSendAsAddress");
+            this.textSendAsAddress.Name = "textSendAsAddress";
+            this.textSendAsAddress.TextChanged += new System.EventHandler(this.textSendAsAddress_TextChanged);
+            // 
             // _labelReminders
             // 
             resources.ApplyResources(this._labelReminders, "_labelReminders");
@@ -209,6 +225,11 @@
             resources.ApplyResources(this._labelPermissions, "_labelPermissions");
             this._labelPermissions.Name = "_labelPermissions";
             // 
+            // _labelRestartRequired
+            // 
+            resources.ApplyResources(this._labelRestartRequired, "_labelRestartRequired");
+            this._labelRestartRequired.Name = "_labelRestartRequired";
+            // 
             // dialogButtons
             // 
             resources.ApplyResources(this.dialogButtons, "dialogButtons");
@@ -219,11 +240,6 @@
             this.dialogButtons.Name = "dialogButtons";
             this.dialogButtons.Apply += new System.EventHandler(this.dialogButtons_Apply);
             // 
-            // _labelRestartRequired
-            // 
-            resources.ApplyResources(this._labelRestartRequired, "_labelRestartRequired");
-            this._labelRestartRequired.Name = "_labelRestartRequired";
-            // 
             // SharedFoldersDialog
             // 
             resources.ApplyResources(this, "$this");
@@ -270,5 +286,7 @@
         private System.Windows.Forms.CheckBox checkWholeStore;
         private System.Windows.Forms.Label labelPermissionsValue;
         private System.Windows.Forms.Label _labelRestartRequired;
+        private System.Windows.Forms.Label _labelSendAsAddress;
+        private System.Windows.Forms.TextBox textSendAsAddress;
     }
 }

src/AcaciaZPushPlugin/AcaciaZPushPlugin/Features/SharedFolders/SharedFoldersDialog.cs

@@ -1,4 +1,4 @@
-/// Copyright 2017 Kopano b.v.
+/// Copyright 2018 Kopano b.v.
 /// 
 /// This program is free software: you can redistribute it and/or modify
 /// it under the terms of the GNU Affero General Public License, version 3,
@@ -16,6 +16,7 @@
 
 using Acacia.Controls;
 using Acacia.Features.GAB;
+using Acacia.Features.SendAs;
 using Acacia.Stubs;
 using Acacia.UI;
 using Acacia.UI.Outlook;
@@ -91,6 +92,7 @@ namespace Acacia.Features.SharedFolders
         }
 
         private readonly FeatureSharedFolders _feature;
+        private readonly FeatureSendAs _featureSendAs;
         private readonly ZPushAccount _account;
         private readonly SharedFoldersManager _folders;
         private readonly SyncId _initialSyncId;
@@ -107,6 +109,7 @@ namespace Acacia.Features.SharedFolders
             }
             this._account = account;
             this._feature = feature;
+            this._featureSendAs = ThisAddIn.Instance.GetFeature<FeatureSendAs>();
             this._folders = feature.Manage(account);
             this._initialSyncId = initial;
 
@@ -410,9 +413,12 @@ namespace Acacia.Features.SharedFolders
                     user = gabLookup.LookupExact(user.UserName);
                 }
 
+                string sendAsAddress = _featureSendAs?.FindSendAsAddress(_account, user);
+
                 // Add the node
                 node = new StoreTreeNode(_folders, gabLookup.GAB,
-                                         user, user.DisplayName, currentShares ?? new Dictionary<BackendId, SharedFolder>(),
+                                         user, sendAsAddress,
+                                         user.DisplayName, currentShares ?? new Dictionary<BackendId, SharedFolder>(),
                                          wholeStore);
                 node.DirtyChanged += UserSharesChanged;
                 node.CheckStateChanged += WholeStoreShareChanged;
@@ -499,6 +505,7 @@ namespace Acacia.Features.SharedFolders
             set
             {
                 _labelSendAs.Visible = checkSendAs.Visible = value != null;
+                _labelSendAsAddress.Visible = textSendAsAddress.Visible = _labelSendAs.Visible;
                 if (value != null)
                     checkSendAs.CheckState = value.Value;
             }
@@ -719,6 +726,9 @@ namespace Acacia.Features.SharedFolders
                             OptionSendAs = CheckState.Indeterminate;
                             checkSendAs.ThreeState = true;
                         }
+
+                        TryInitSendAsAddress();
+                        EnableSendAsAddress();
                     }
                     // Reminders shown if any node supports it
                     if (_optionRemindersNodes.Count > 0)
@@ -791,6 +801,9 @@ namespace Acacia.Features.SharedFolders
 
         private void checkSendAs_CheckedChanged(object sender, EventArgs e)
         {
+            // Hide the address unless it makes sense
+            EnableSendAsAddress();
+
             for (int i = 0; i < _optionSendAsNodes.Count; ++i)
             {
                 FolderTreeNode node = _optionSendAsNodes[i];
@@ -805,16 +818,74 @@ namespace Acacia.Features.SharedFolders
                 if (node.SharedFolder.FlagSendAsOwner != sendAs)
                 {
                     node.SharedFolder = node.SharedFolder.WithFlagSendAsOwner(sendAs);
+                    if (sendAs)
+                    {
+                        TryInitSendAsAddress();
+                    }
 
                     // Send-as is applied recursively
                     foreach (FolderTreeNode desc in node.Descendants())
                     {
-                        desc.SharedFolder = desc.SharedFolder.WithFlagSendAsOwner(sendAs);
+                        if (desc.SharedFolder != null)
+                        {
+                            desc.SharedFolder = desc.SharedFolder.WithFlagSendAsOwner(sendAs);
+                        }
                     }
                 }
             }
         }
 
+        private void TryInitSendAsAddress()
+        {
+            string email = null;
+                /*_featureSendAs?.FindSendAsAddress(_account, null, 
+                    _optionSendAsNodes[0].AvailableFolder.BackendId,
+                    _optionSendAsNodes[0].AvailableFolder.Store;)*/
+
+            if (email != null)
+            {
+                textSendAsAddress.Text = email;
+                if (!string.IsNullOrEmpty(email) && _optionSendAsNodes[0].IsShared)
+                {
+                    _optionSendAsNodes[0].SharedFolder.SendAsAddress = email;
+                }
+            }
+            else if (checkSendAs.Checked)
+            {
+                // TODO: resource string
+                MessageBox.Show("Unable to determine the email address for the folder. " +
+                    "Send-as will only work if you specify the email address manually.",
+                    "Shared Folders", MessageBoxButtons.OK, MessageBoxIcon.Information);
+            }
+        }
+
+        private void EnableSendAsAddress()
+        {
+            // Hide unless there's only one selected, and send as is enabled
+            if (_optionSendAsNodes.Count == 1)
+            {
+                _labelSendAsAddress.Visible = textSendAsAddress.Visible = true;
+                _labelSendAsAddress.Enabled = textSendAsAddress.Enabled = OptionSendAs == CheckState.Checked;
+            }
+            else
+            {
+                _labelSendAsAddress.Visible = textSendAsAddress.Visible = false;
+            }
+        }
+
+        private void textSendAsAddress_TextChanged(object sender, EventArgs e)
+        {
+            for (int i = 0; i < _optionSendAsNodes.Count; ++i)
+            {
+                FolderTreeNode node = _optionSendAsNodes[i];
+
+                if (node.SharedFolder.SendAsAddress != textSendAsAddress.Text)
+                {
+                    node.SharedFolder = node.SharedFolder.WithSendAsAddress(textSendAsAddress.Text);
+                }
+            }
+        }
+
         private void checkReminders_CheckedChanged(object sender, EventArgs e)
         {
             for (int i = 0; i < _optionRemindersNodes.Count; ++i)

src/AcaciaZPushPlugin/AcaciaZPushPlugin/Features/SharedFolders/SharedFoldersDialog.resx

@@ -283,7 +283,7 @@
     <value>3, 38</value>
   </data>
   <data name="kTreeFolders.Size" type="System.Drawing.Size, System.Drawing">
-    <value>442, 250</value>
+    <value>442, 224</value>
   </data>
   <data name="kTreeFolders.TabIndex" type="System.Int32, mscorlib">
     <value>1</value>
@@ -394,7 +394,7 @@
     <value>NoControl</value>
   </data>
   <data name="labelPermissionsValue.Location" type="System.Drawing.Point, System.Drawing">
-    <value>99, 107</value>
+    <value>99, 133</value>
   </data>
   <data name="labelPermissionsValue.Size" type="System.Drawing.Size, System.Drawing">
     <value>346, 20</value>
@@ -543,6 +543,69 @@
   <data name="&gt;&gt;checkSendAs.ZOrder" xml:space="preserve">
     <value>6</value>
   </data>
+  <data name="_labelSendAsAddress.AutoSize" type="System.Boolean, mscorlib">
+    <value>True</value>
+  </data>
+  <data name="_labelSendAsAddress.Dock" type="System.Windows.Forms.DockStyle, System.Windows.Forms">
+    <value>Fill</value>
+  </data>
+  <data name="_labelSendAsAddress.ImeMode" type="System.Windows.Forms.ImeMode, System.Windows.Forms">
+    <value>NoControl</value>
+  </data>
+  <data name="_labelSendAsAddress.Location" type="System.Drawing.Point, System.Drawing">
+    <value>3, 80</value>
+  </data>
+  <data name="_labelSendAsAddress.Size" type="System.Drawing.Size, System.Drawing">
+    <value>90, 26</value>
+  </data>
+  <data name="_labelSendAsAddress.TabIndex" type="System.Int32, mscorlib">
+    <value>11</value>
+  </data>
+  <data name="_labelSendAsAddress.Text" xml:space="preserve">
+    <value>Send-as address</value>
+  </data>
+  <data name="_labelSendAsAddress.TextAlign" type="System.Drawing.ContentAlignment, System.Drawing">
+    <value>MiddleLeft</value>
+  </data>
+  <data name="&gt;&gt;_labelSendAsAddress.Name" xml:space="preserve">
+    <value>_labelSendAsAddress</value>
+  </data>
+  <data name="&gt;&gt;_labelSendAsAddress.Type" xml:space="preserve">
+    <value>System.Windows.Forms.Label, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </data>
+  <data name="&gt;&gt;_labelSendAsAddress.Parent" xml:space="preserve">
+    <value>_layoutOptions</value>
+  </data>
+  <data name="&gt;&gt;_labelSendAsAddress.ZOrder" xml:space="preserve">
+    <value>7</value>
+  </data>
+  <data name="textSendAsAddress.Dock" type="System.Windows.Forms.DockStyle, System.Windows.Forms">
+    <value>Fill</value>
+  </data>
+  <data name="textSendAsAddress.Location" type="System.Drawing.Point, System.Drawing">
+    <value>102, 83</value>
+  </data>
+  <data name="textSendAsAddress.Margin" type="System.Windows.Forms.Padding, System.Windows.Forms">
+    <value>6, 3, 3, 3</value>
+  </data>
+  <data name="textSendAsAddress.Size" type="System.Drawing.Size, System.Drawing">
+    <value>343, 20</value>
+  </data>
+  <data name="textSendAsAddress.TabIndex" type="System.Int32, mscorlib">
+    <value>12</value>
+  </data>
+  <data name="&gt;&gt;textSendAsAddress.Name" xml:space="preserve">
+    <value>textSendAsAddress</value>
+  </data>
+  <data name="&gt;&gt;textSendAsAddress.Type" xml:space="preserve">
+    <value>System.Windows.Forms.TextBox, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </data>
+  <data name="&gt;&gt;textSendAsAddress.Parent" xml:space="preserve">
+    <value>_layoutOptions</value>
+  </data>
+  <data name="&gt;&gt;textSendAsAddress.ZOrder" xml:space="preserve">
+    <value>8</value>
+  </data>
   <data name="_labelReminders.AutoSize" type="System.Boolean, mscorlib">
     <value>True</value>
   </data>
@@ -550,7 +613,7 @@
     <value>Fill</value>
   </data>
   <data name="_labelReminders.Location" type="System.Drawing.Point, System.Drawing">
-    <value>3, 80</value>
+    <value>3, 106</value>
   </data>
   <data name="_labelReminders.Size" type="System.Drawing.Size, System.Drawing">
     <value>90, 27</value>
@@ -574,7 +637,7 @@
     <value>_layoutOptions</value>
   </data>
   <data name="&gt;&gt;_labelReminders.ZOrder" xml:space="preserve">
-    <value>7</value>
+    <value>9</value>
   </data>
   <data name="checkReminders.AutoSize" type="System.Boolean, mscorlib">
     <value>True</value>
@@ -583,7 +646,7 @@
     <value>Left</value>
   </data>
   <data name="checkReminders.Location" type="System.Drawing.Point, System.Drawing">
-    <value>102, 84</value>
+    <value>102, 110</value>
   </data>
   <data name="checkReminders.Margin" type="System.Windows.Forms.Padding, System.Windows.Forms">
     <value>6, 4, 3, 3</value>
@@ -607,7 +670,7 @@
     <value>_layoutOptions</value>
   </data>
   <data name="&gt;&gt;checkReminders.ZOrder" xml:space="preserve">
-    <value>8</value>
+    <value>10</value>
   </data>
   <data name="_labelPermissions.AutoSize" type="System.Boolean, mscorlib">
     <value>True</value>
@@ -616,7 +679,7 @@
     <value>Fill</value>
   </data>
   <data name="_labelPermissions.Location" type="System.Drawing.Point, System.Drawing">
-    <value>3, 107</value>
+    <value>3, 133</value>
   </data>
   <data name="_labelPermissions.Padding" type="System.Windows.Forms.Padding, System.Windows.Forms">
     <value>0, 4, 0, 3</value>
@@ -643,7 +706,7 @@
     <value>_layoutOptions</value>
   </data>
   <data name="&gt;&gt;_labelPermissions.ZOrder" xml:space="preserve">
-    <value>9</value>
+    <value>11</value>
   </data>
   <data name="_labelRestartRequired.Dock" type="System.Windows.Forms.DockStyle, System.Windows.Forms">
     <value>Fill</value>
@@ -676,22 +739,22 @@
     <value>_layoutOptions</value>
   </data>
   <data name="&gt;&gt;_labelRestartRequired.ZOrder" xml:space="preserve">
-    <value>10</value>
+    <value>12</value>
   </data>
   <data name="_layoutOptions.Dock" type="System.Windows.Forms.DockStyle, System.Windows.Forms">
     <value>Fill</value>
   </data>
   <data name="_layoutOptions.Location" type="System.Drawing.Point, System.Drawing">
-    <value>0, 291</value>
+    <value>0, 265</value>
   </data>
   <data name="_layoutOptions.Margin" type="System.Windows.Forms.Padding, System.Windows.Forms">
     <value>0, 0, 0, 0</value>
   </data>
   <data name="_layoutOptions.RowCount" type="System.Int32, mscorlib">
-    <value>5</value>
+    <value>6</value>
   </data>
   <data name="_layoutOptions.Size" type="System.Drawing.Size, System.Drawing">
-    <value>448, 127</value>
+    <value>448, 153</value>
   </data>
   <data name="_layoutOptions.TabIndex" type="System.Int32, mscorlib">
     <value>2</value>
@@ -709,7 +772,7 @@
     <value>2</value>
   </data>
   <data name="_layoutOptions.LayoutSettings" type="System.Windows.Forms.TableLayoutSettings, System.Windows.Forms">
-    <value>&lt;?xml version="1.0" encoding="utf-16"?&gt;&lt;TableLayoutSettings&gt;&lt;Controls&gt;&lt;Control Name="_labelWholeStore" Row="0" RowSpan="1" Column="0" ColumnSpan="1" /&gt;&lt;Control Name="checkWholeStore" Row="0" RowSpan="1" Column="1" ColumnSpan="1" /&gt;&lt;Control Name="labelPermissionsValue" Row="4" RowSpan="1" Column="1" ColumnSpan="2" /&gt;&lt;Control Name="_labelName" Row="1" RowSpan="1" Column="0" ColumnSpan="1" /&gt;&lt;Control Name="textName" Row="1" RowSpan="1" Column="1" ColumnSpan="2" /&gt;&lt;Control Name="_labelSendAs" Row="2" RowSpan="1" Column="0" ColumnSpan="1" /&gt;&lt;Control Name="checkSendAs" Row="2" RowSpan="1" Column="1" ColumnSpan="1" /&gt;&lt;Control Name="_labelReminders" Row="3" RowSpan="1" Column="0" ColumnSpan="1" /&gt;&lt;Control Name="checkReminders" Row="3" RowSpan="1" Column="1" ColumnSpan="1" /&gt;&lt;Control Name="_labelPermissions" Row="4" RowSpan="1" Column="0" ColumnSpan="1" /&gt;&lt;Control Name="_labelRestartRequired" Row="0" RowSpan="1" Column="2" ColumnSpan="1" /&gt;&lt;/Controls&gt;&lt;Columns Styles="AutoSize,0,AutoSize,0,Percent,100" /&gt;&lt;Rows Styles="AutoSize,0,AutoSize,0,AutoSize,0,AutoSize,0,AutoSize,0,Absolute,20" /&gt;&lt;/TableLayoutSettings&gt;</value>
+    <value>&lt;?xml version="1.0" encoding="utf-16"?&gt;&lt;TableLayoutSettings&gt;&lt;Controls&gt;&lt;Control Name="_labelWholeStore" Row="0" RowSpan="1" Column="0" ColumnSpan="1" /&gt;&lt;Control Name="checkWholeStore" Row="0" RowSpan="1" Column="1" ColumnSpan="1" /&gt;&lt;Control Name="labelPermissionsValue" Row="5" RowSpan="1" Column="1" ColumnSpan="2" /&gt;&lt;Control Name="_labelName" Row="1" RowSpan="1" Column="0" ColumnSpan="1" /&gt;&lt;Control Name="textName" Row="1" RowSpan="1" Column="1" ColumnSpan="2" /&gt;&lt;Control Name="_labelSendAs" Row="2" RowSpan="1" Column="0" ColumnSpan="1" /&gt;&lt;Control Name="checkSendAs" Row="2" RowSpan="1" Column="1" ColumnSpan="1" /&gt;&lt;Control Name="_labelSendAsAddress" Row="3" RowSpan="1" Column="0" ColumnSpan="1" /&gt;&lt;Control Name="textSendAsAddress" Row="3" RowSpan="1" Column="1" ColumnSpan="2" /&gt;&lt;Control Name="_labelReminders" Row="4" RowSpan="1" Column="0" ColumnSpan="1" /&gt;&lt;Control Name="checkReminders" Row="4" RowSpan="1" Column="1" ColumnSpan="1" /&gt;&lt;Control Name="_labelPermissions" Row="5" RowSpan="1" Column="0" ColumnSpan="1" /&gt;&lt;Control Name="_labelRestartRequired" Row="0" RowSpan="1" Column="2" ColumnSpan="1" /&gt;&lt;/Controls&gt;&lt;Columns Styles="AutoSize,0,AutoSize,0,Percent,100" /&gt;&lt;Rows Styles="AutoSize,0,AutoSize,0,AutoSize,0,AutoSize,0,AutoSize,0,AutoSize,0" /&gt;&lt;/TableLayoutSettings&gt;</value>
   </data>
   <data name="_layoutMain.Dock" type="System.Windows.Forms.DockStyle, System.Windows.Forms">
     <value>Fill</value>

src/AcaciaZPushPlugin/AcaciaZPushPlugin/Features/SharedFolders/SharedFoldersManager.cs

@@ -47,6 +47,7 @@ namespace Acacia.Features.SharedFolders
         }
 
         public FeatureSharedFolders Feature { get { return _feature; } }
+        public ZPushAccount Account { get { return _account; } }
 
         #region API
 
@@ -57,6 +58,17 @@ namespace Acacia.Features.SharedFolders
         {
             // Make sure reminders are updated as soon as possible
             UpdateReminders(shares);
+
+            // Store the send-as addresses
+            foreach (SharedFolder share in shares)
+            {
+                if (share.CanSendAs)
+                {
+                    _account.SetSendAsAddress(share.BackendId, share.FlagSendAsOwner ? share.SendAsAddress : null);
+                }
+            }
+
+            // Update the shares
             _api.SetCurrentShares(store, shares, cancel);
 
             // Commit changes

src/AcaciaZPushPlugin/AcaciaZPushPlugin/Features/SharedFolders/StoreTreeNode.cs

@@ -27,6 +27,8 @@ using Acacia.ZPush.API.SharedFolders;
 using Acacia.ZPush.Connect;
 using Acacia.Native;
 using Acacia.Features.GAB;
+using Acacia.Features.SendAs;
+using Acacia.Stubs;
 
 namespace Acacia.Features.SharedFolders
 {
@@ -43,8 +45,11 @@ namespace Acacia.Features.SharedFolders
         private readonly Dictionary<BackendId, SharedFolder> _currentShares;
 
         private readonly FeatureSharedFolders _feature;
+        private readonly FeatureSendAs _featureSendAs;
+        private readonly ZPushAccount _account;
         private readonly GABHandler _gab;
         private readonly GABUser _user;
+        private readonly string _sendAsAddress;
 
         public readonly bool IsReadOnly;
 
@@ -61,15 +66,22 @@ namespace Acacia.Features.SharedFolders
             }
         }
 
-        public StoreTreeNode(SharedFoldersManager folders, GABHandler gab, GABUser user, string text, 
+        public StoreTreeNode(SharedFoldersManager folders, GABHandler gab, GABUser user, string sendAsAddress, string text, 
                              Dictionary<BackendId, SharedFolder> currentFolders, bool isShared)
         :
         base(text)
         {
             this._initialShares = currentFolders;
+            // Patch in send as address
+            foreach (SharedFolder share in _initialShares.Values)
+                if (share.SendAsAddress == null)
+                    share.SendAsAddress = sendAsAddress;
             this._feature = folders.Feature;
+            this._featureSendAs = ThisAddIn.Instance.GetFeature<FeatureSendAs>();
+            this._account = folders.Account;
             this._gab = gab;
             this._user = user;
+            this._sendAsAddress = sendAsAddress;
             this.IsReadOnly = false;
             this._isShared = isShared;
 
@@ -155,11 +167,19 @@ namespace Acacia.Features.SharedFolders
         private SharedFolder CreateDefaultShare(AvailableFolder folder)
         {
             SharedFolder share = new SharedFolder(folder, DefaultNameForFolder(folder));
-            
-            // Default send as for mail folders
-            if (folder.Type.IsMail())
-                share = share.WithFlagSendAsOwner(true);
 
+            // Default send as for mail folders if the address can be determined
+            /*using (IRecipient sendAs = _featureSendAs?.FindSendAsSender(_account, null, folder.BackendId, null, _sendAsAddress))
+            {
+                if (sendAs != null)
+                {
+                    share = share.WithFlagSendAsOwner(true).WithSendAsAddress(sendAs.Address);
+                }
+                else
+                {
+                    share = share.WithFlagSendAsOwner(false).WithSendAsAddress(null);
+                }
+            }*/
             return share;
         }
 
@@ -218,6 +238,8 @@ namespace Acacia.Features.SharedFolders
                     if (state.FlagUpdateShareName)
                         state = state.WithName(DefaultNameForFolder(folder));
                 }
+
+                state = state.WithSendAsAddress(_sendAsAddress);
                 return state;
             }
             return null;

src/AcaciaZPushPlugin/AcaciaZPushPlugin/Features/SyncState/FeatureSyncState.cs

@@ -501,7 +501,7 @@ namespace Acacia.Features.SyncState
             // Check the inbox folder
             using (IFolder inbox = account.Account.Store.GetDefaultFolder(DefaultFolder.Inbox))
             {
-                string syncId = (string)inbox.GetProperty(OutlookConstants.PR_ZPUSH_SYNC_ID);
+                string syncId = (string)inbox.GetProperty(OutlookConstants.PR_ZPUSH_BACKEND_ID);
 
                 // If it's syncing, it's not stalled
                 if (syncId != null && syncId != "0")
@@ -515,7 +515,7 @@ namespace Acacia.Features.SyncState
                 _syncStallLastSyncTime = sync.LastSyncTime;
 
                 // Get the sync state
-                string folderId = (string)inbox.GetProperty(OutlookConstants.PR_ZPUSH_FOLDER_ID);
+                string folderId = (string)inbox.GetProperty(OutlookConstants.PR_ZPUSH_SYNC_ID);
                 if (folderId != null)
                 {
 

src/AcaciaZPushPlugin/AcaciaZPushPlugin/OutlookConstants.cs

@@ -146,8 +146,8 @@ namespace Acacia
 
         #region EAS / ZPush
 
-        public const string PR_ZPUSH_SYNC_ID = PROP + "6A18" + PT_STRING8;
+        public const string PR_ZPUSH_BACKEND_ID = PROP + "6A18" + PT_STRING8;
-        public const string PR_ZPUSH_FOLDER_ID = PROP + "6A19" + PT_STRING8;
+        public const string PR_ZPUSH_SYNC_ID = PROP + "6A19" + PT_STRING8;
         public const string PR_ZPUSH_MESSAGE_ID = PROP + "6B20" + PT_STRING8;
         public const string PR_ZPUSH_NAME = PROP + "6915" + PT_UNICODE;
 

src/AcaciaZPushPlugin/AcaciaZPushPlugin/Stubs/IFolder.cs

@@ -102,6 +102,7 @@ namespace Acacia.Stubs
 
         ItemType ItemType { get; }
 
+        BackendId BackendId { get; }
         SyncId SyncId { get; }
 
         /// <summary>

src/AcaciaZPushPlugin/AcaciaZPushPlugin/Stubs/OutlookWrappers/AccountWrapper.cs

@@ -158,7 +158,10 @@ namespace Acacia.Stubs.OutlookWrappers
         {
             get
             {
-                return RegistryUtil.GetValueString(_regPath, OutlookConstants.REG_VAL_EAS_DEVICEID, null);
+                string devId = RegistryUtil.GetValueString(_regPath, OutlookConstants.REG_VAL_EAS_DEVICEID, null);
+                if (devId == null)
+                    devId = RegistryUtil.GetValueString(_regPath, OutlookConstants.REG_VAL_EAS_DEVICEID, null);
+                return devId;
             }
         }
 
@@ -265,6 +268,22 @@ namespace Acacia.Stubs.OutlookWrappers
             });
         }
 
+        public string this[string index]
+        {
+            get
+            {
+                return RegistryUtil.GetValueString(_regPath, index, null);
+            }
+
+            set
+            {
+                if (value == null)
+                    RegistryUtil.RemoveValue(_regPath, index);
+                else
+                    RegistryUtil.SetValueString(_regPath, index, value);
+            }
+        }
+
         #endregion
 
         public string RegistryBaseKey { get { return _regPath; } }

src/AcaciaZPushPlugin/AcaciaZPushPlugin/Stubs/OutlookWrappers/FolderWrapper.cs

@@ -119,8 +119,17 @@ namespace Acacia.Stubs.OutlookWrappers
         {
             get
             {
-                string folderId = (string)GetProperty(OutlookConstants.PR_ZPUSH_FOLDER_ID);
+                string syncId = (string)GetProperty(OutlookConstants.PR_ZPUSH_SYNC_ID);
-                return folderId == null ? null : new SyncId(folderId);
+                return syncId == null ? null : new SyncId(syncId);
+            }
+        }
+
+        public BackendId BackendId
+        {
+            get
+            {
+                string backendId = (string)GetProperty(OutlookConstants.PR_ZPUSH_BACKEND_ID);
+                return backendId == null ? null : new BackendId(backendId);
             }
         }
 

src/AcaciaZPushPlugin/AcaciaZPushPlugin/Utils/RegistryUtil.cs

@@ -56,6 +56,29 @@ namespace Acacia.Utils
             Registry.SetValue(keyPath, valueName, value);
         }
 
+        public static void RemoveValue(string keyPath, string valueName)
+        {
+            using (RegistryKey key = KeyFromPath(keyPath, true))
+            {
+                if (key != null)
+                {
+                    key.DeleteValue(valueName, false);
+                }
+            }
+        }
+
+        private static RegistryKey KeyFromPath(string keyPath, bool writeable)
+        {
+            foreach (RegistryKey baseKey in new RegistryKey[] {Registry.CurrentUser, Registry.LocalMachine })
+            {
+                if (keyPath.StartsWith(baseKey.Name))
+                {
+                    return baseKey.OpenSubKey(keyPath.Substring(baseKey.Name.Length + 1), writeable);
+                }
+            }
+            return null;
+        }
+
         public static string RegToString(object o)
         {
             if (o is byte[])

src/AcaciaZPushPlugin/AcaciaZPushPlugin/ZPush/API/SharedFolders/SharedFolder.cs

@@ -163,7 +163,14 @@ namespace Acacia.ZPush.API.SharedFolders
         {
             SoapData newData = _data;
             newData.flags = flags;
-            return new SharedFolder(newData);
+            SharedFolder clone = new SharedFolder(newData);
+            clone.SendAsAddress = SendAsAddress;
+            return clone;
+        }
+
+        public bool CanSendAs
+        {
+            get { return SyncType.IsMail(); }
         }
 
         public bool FlagSendAsOwner { get { return Flags.HasFlag(ShareFlags.SendAsOwner); } }
@@ -196,6 +203,23 @@ namespace Acacia.ZPush.API.SharedFolders
 
         #endregion
 
+        #region Send as
+
+        public string SendAsAddress
+        {
+            get;
+            set;
+        }
+
+        public SharedFolder WithSendAsAddress(string sendAs)
+        {
+            SharedFolder clone = new SharedFolder(_data);
+            clone.SendAsAddress = sendAs;
+            return clone;
+        }
+
+        #endregion
+
         #region Standard overrides
 
         public override int GetHashCode()
@@ -205,7 +229,17 @@ namespace Acacia.ZPush.API.SharedFolders
 
         override public bool Equals(object o)
         {
-            return o is SharedFolder && _data.Equals(((SharedFolder)o)._data);
+            SharedFolder rhs = o as SharedFolder;
+            if (rhs == null)
+                return false;
+
+            if (!_data.Equals(rhs._data))
+                return false;
+
+            if (!FlagSendAsOwner)
+                return true;
+
+            return Object.Equals(SendAsAddress, rhs.SendAsAddress);
         }
 
         public override string ToString()

src/AcaciaZPushPlugin/AcaciaZPushPlugin/ZPush/ZPushAccount.cs

@@ -387,5 +387,31 @@ namespace Acacia.ZPush
         }
 
         #endregion
+
+        #region Send as
+
+        private const string PREFIX_SEND_AS = "KOE SendAs ";
+
+        public void SetSendAsAddress(BackendId id, string sendAsAddress)
+        {
+            RegistryUtil.SetValueString(Account.RegistryBaseKey, PREFIX_SEND_AS + id.ToString(), sendAsAddress);
+        }
+
+        public string GetSendAsAddress(BackendId id)
+        {
+            return RegistryUtil.GetValueString(Account.RegistryBaseKey, PREFIX_SEND_AS + id.ToString(), null);
+        }
+
+        public void SetSendAsAddress(SyncId id, string sendAsAddress)
+        {
+            RegistryUtil.SetValueString(Account.RegistryBaseKey, PREFIX_SEND_AS + id.ToString(), sendAsAddress);
+        }
+
+        public string GetSendAsAddress(SyncId id)
+        {
+            return RegistryUtil.GetValueString(Account.RegistryBaseKey, PREFIX_SEND_AS + id.ToString(), null);
+        }
+
+        #endregion
     }
 }

src/AcaciaZPushPlugin/AcaciaZPushPlugin/ZPush/ZPushTypes.cs

@@ -118,7 +118,23 @@ namespace Acacia.ZPush
     {
         public static readonly BackendId NONE = new BackendId("0");
 
-        public BackendId(string id) : base(id) { }
+        public BackendId(string id) 
+        : 
+        base(StripSuffix(id))
+        {
+        }
+
+        private static string StripSuffix(string id)
+        {
+            // The backend id is of the format {id}num?. Strip off num if present
+            int index = id.IndexOf('}');
+            if (index >= 0 && index < id.Length)
+            {
+                id = id.Substring(0, index + 1);
+            }
+            return id;
+        }
+
         public BackendId(int id) : base(id) { }
         public BackendId(long id) : base(id.ToString()) { }