Switchvox and FreePBX: Hosted email configuration options for Microsoft Office 365 and Google Workspace

The following article provides a way to configure hosted email services for different appliances. This allows the systems to send emails without needing additional user accounts and without any multi factor authentication in a simplified manner.

Microsoft Office 365:

How to set up a multifunction device or application to send emails using Microsoft 365 or Office 365

To summarize look up the MX record of the domain and use that value as the relay server.

For example:

Open

Take the office domain and look up the value using a tool such as MxToolbox

Open

Take the MX value and use it in the outbound SMTP server field
Leave the username and password field empty
Set the SMTP port to 25
Set connection encryption to None

Switchvox

FreePBX

One caveat to this method is that messages can only be sent to addresses at the office domain which is not an issue in most cases. If you have an issue with this method contact MS 365 support and they will guide you through any issues.

Google Workspace:

Google documents the process here …

https://apps.google.com/supportwidget/articlehome?hl=en&article_url=https://support.google.com/a/answer/176600?hl=en&assistant_id=generic-unu&product_context=176600&product_name=UnuFlow&trigger_context=a

The primary difference with Google Workspace is that you must define IP’s.
Below shows defined access for both Freepbx and Switchvox systems.

Google is more restrictive with respect to the from domain. If you encounter a failure the mail logs may report something like the following: 

If you encounter a failure insure your from address uses the Google Workspace domain. In the examples below the Google Workspace mail domain is http://cditc.me
 

Switchvox

FreePBX

In summary these are good options for most organizations which do not require an additional account and are relatively simple to configure and debug.