⚡ Make it possible to use email nodes work with unauthorized certs

packages/nodes-base/nodes/EmailSend.node.ts

@@ -3,13 +3,14 @@ import {
 	IExecuteSingleFunctions,
 } from 'n8n-core';
 import {
+	IDataObject,
 	INodeTypeDescription,
 	INodeExecutionData,
 	INodeType,
 } from 'n8n-workflow';
 
 import { createTransport } from 'nodemailer';
-
+import SMTPTransport = require('nodemailer/lib/smtp-transport');
 
 export class EmailSend implements INodeType {
 	description: INodeTypeDescription = {
@@ -96,6 +97,22 @@ export class EmailSend implements INodeType {
 				default: '',
 				description: 'Name of the binary properties which contain<br />data which should be added to email as attachment.<br />Multiple ones can be comma separated.',
 			},
+			{
+				displayName: 'Options',
+				name: 'options',
+				type: 'collection',
+				placeholder: 'Add Option',
+				default: {},
+				options: [
+					{
+						displayName: 'Ignore SSL Issues',
+						name: 'allowUnauthorizedCerts',
+						type: 'boolean',
+						default: false,
+						description: 'Do connect even if SSL certificate validation is not possible.',
+					},
+				],
+			},
 		],
 	};
 
@@ -110,6 +127,7 @@ export class EmailSend implements INodeType {
 		const text = this.getNodeParameter('text') as string;
 		const html = this.getNodeParameter('html') as string;
 		const attachmentPropertyString = this.getNodeParameter('attachments') as string;
+		const options = this.getNodeParameter('options', {}) as IDataObject;
 
 		const credentials = this.getCredentials('smtp');
 
@@ -117,16 +135,24 @@ export class EmailSend implements INodeType {
 			throw new Error('No credentials got returned!');
 		}
 
-		const transporter = createTransport({
-			// @ts-ignore
+		const connectionOptions: SMTPTransport.Options = {
 			host: credentials.host as string,
 			port: credentials.port as number,
 			secure: credentials.secure as boolean,
+			// @ts-ignore
 			auth: {
 				user: credentials.user,
 				pass: credentials.password,
 			}
-		});
+		};
+
+		if (options.allowUnauthorizedCerts === true) {
+			connectionOptions.tls = {
+				rejectUnauthorized: false
+			};
+		}
+
+		const transporter = createTransport(connectionOptions);
 
 		// setup email data with unicode symbols
 		const mailOptions = {