node-red/nodes/core/social/61-email.html

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<script type="text/x-red" data-template-name="email">
    <div class="form-row">
        <label for="node-input-name"><i class="icon-envelope"></i> To</label>
        <input type="text" id="node-input-name" placeholder="email@address.com">
    </div>
</script>

<script type="text/x-red" data-help-name="email">
	<p>Sends the <b>msg.payload</b> as an email, with a subject of <b>msg.topic</b>.</p>
	<p>It sends the message to the configured recipient <i>only</i>.</p>
	<p><b>msg.topic</b> is used to set the subject of the email, and <b>msg.payload</b> is the body text.</p>
	<p>Uses the nodemailer module - you also need to pre-configure your email SMTP settings in a file emailkeys.js like that below.</p>
	<p><pre>module.exports = { service: "Gmail", user: "blahblah@gmail.com", pass: "password", server: "imap.gmail.com", port: "993" }</pre></p>
	<p>This <b>must</b> be located in the diectory above node-red.</p>
</script>

<script type="text/javascript">
    RED.nodes.registerType('email',{
        category: 'social-output',
        color:"#c7e9c0",
        defaults: {
            name: {value:"",required:true}
        },
        inputs:1,
        outputs:0,
        icon: "envelope.png",
        align: "right",
        label: function() {
            return this.name;
        },
        labelStyle: function() {
            return (this.name||!this.topic)?"node_label_italic":"";
        }
    });
</script>