Make Rocketchat use certificate for secured SMTP server

dudanogueira · September 22, 2021, 10:34am

Hi!

I was checking the source code for your question, and searching for MAIL_URL I found this:

RocketChat/Rocket.Chat/blob/9ae05463852458b08fe68033561ee42209d8172f/app/lib/server/startup/settingsOnLoadSMTP.js

import { Meteor } from 'meteor/meteor';
import _ from 'underscore';

import { settings } from '../../../settings/server';
import { SystemLogger } from '../../../../server/lib/logger/system';

const buildMailURL = _.debounce(function() {
	SystemLogger.info('Updating process.env.MAIL_URL');

	if (settings.get('SMTP_Host')) {
		process.env.MAIL_URL = `${ settings.get('SMTP_Protocol') }://`;

		if (settings.get('SMTP_Username') && settings.get('SMTP_Password')) {
			process.env.MAIL_URL += `${ encodeURIComponent(settings.get('SMTP_Username')) }:${ encodeURIComponent(settings.get('SMTP_Password')) }@`;
		}

		process.env.MAIL_URL += encodeURIComponent(settings.get('SMTP_Host'));

		if (settings.get('SMTP_Port')) {
			process.env.MAIL_URL += `:${ parseInt(settings.get('SMTP_Port')) }`;

This file has been truncated. show original

I think the best you can get right now is a mix and match of the following options:

rocketchat:
  ...
  environment:
    - MAIL_URL=smtps://user:password@smtp_server:25&secure=false&ignoreTLS=true

One could work around this requirement by setting up an smtp relay that will use the provided certificate and provide a smtp server that will work with Rocket.Chat.

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Make Rocketchat use certificate for secured SMTP server

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