Cleanup and README

Remove old code, update readme

social/email/61-email.js

@@ -578,55 +578,6 @@ module.exports = function(RED) {
             }
         }  // End of checkEmail
 
-/*        if (node.protocol === "IMAP") {
-            var tout = (node.repeat > 0) ? node.repeat - 500 : 15000;
-            if(node.authentication == "OAUTH") {
-                imap = new Imap({
-                    user: node.userid,
-                    oauth: node.token,
-                    host: node.inserver,
-                    port: node.inport,
-                    tls: node.useSSL,
-                    autotls: node.autotls,
-                    tlsOptions: { rejectUnauthorized: false },
-                    connTimeout: tout,
-                    authTimeout: tout
-                });
-            } else if(node.authentication == "XOAUTH2") {
-                imap = new Imap({
-                    user: node.userid,
-                    xoauth2: node.token,
-                    host: node.inserver,
-                    port: node.inport,
-                    tls: node.useSSL,
-                    autotls: node.autotls,
-                    tlsOptions: { rejectUnauthorized: false },
-                    connTimeout: tout,
-                    authTimeout: tout
-                });
-            } else {
-                imap = new Imap({
-                    user: node.userid,
-                    password: node.password,
-                    host: node.inserver,
-                    port: node.inport,
-                    tls: node.useSSL,
-                    autotls: node.autotls,
-                    tlsOptions: { rejectUnauthorized: false },
-                    connTimeout: tout,
-                    authTimeout: tout
-                });
-            }
-            imap.on('error', function(err) {
-                if (err.errno !== "ECONNRESET") {
-                    s = false;
-                    node.error(err.message,err);
-                    node.status({fill:"red",shape:"ring",text:"email.status.connecterror"});
-                }
-                setInputRepeatTimeout();
-            });
-        }*/
-
         node.on("input", function(msg, send, done) {
             send = send || function() { node.send.apply(node,arguments) };
             checkEmail(msg,send,done);

social/email/README.md

@@ -9,6 +9,8 @@ Pre-requisite
 You will need valid email credentials for your email server. For GMail this may mean
 getting an application password if you have two-factor authentication enabled.
 
+For Exchange and Outlook 365 you must use OAuth2.0.
+
 **Note :** Version 1.x of this node requires **Node.js v8** or newer.
 
 Install
@@ -26,6 +28,13 @@ GMail users
 If you are accessing GMail you may need to either enable <a target="_new" href="https://support.google.com/mail/answer/185833?hl=en">an application password</a>,
 or enable <a target="_new" href="https://support.google.com/accounts/answer/6010255?hl=en">less secure access</a> via your Google account settings.</p>
 
+Office 365 users
+-----------
+
+If you are accessing Exchnage you will need to register an application through their platform and use OAuth2.0.
+<a target="_new" href="https://learn.microsoft.com/en-us/exchange/client-developer/legacy-protocols/how-to-authenticate-an-imap-pop-smtp-application-by-using-oauth#get-an-access-token">Details on how to do this can be found here.</a>
+
+
 Usage
 -----
 
@@ -42,6 +51,9 @@ If there is text/html then that is returned in `msg.html`. `msg.from` and
 Additionally `msg.header` contains the complete header object including
 **to**, **cc** and other potentially useful properties.
 
+Modern authentication through OAuth2.0 is supported, but must be triggered by an incoming access token and
+can only be automatically triggered upstream.
+
 ### Output node
 
 Sends the `msg.payload` as an email, with a subject of `msg.topic`.