Scenario:

How to setup MX Outbound (outbound SMTP Server) for WordPress?
How to setup MX Outbound for WP SMTP?
How to setup WordPress to use a SMTP Server?
How to setup the WP SMTP Plugin?

Solution:

Follow the guide below to configure WordPress to use MX Outbound as the outbound SMTP mail server with the WP SMTP Plugin.

WP SMTP is a plugin for WordPress that sends emails via SMTP instead of the PHP mail() function. The plugin can be configured from the control panel by going to Dashboard->Settings->WP SMTP.

Note, If the "From" field is not a valid email address and/or the "Host" field is left blank, it will not reconfigure the wp_mail() function correctly.

In the WP SMTP Settings set the Host field as specified in your welcome email. Change the SMTP Secure field to None. Set the Port as specified below. Set the SMTP Authentication to Yes.

Set the Username and Password as specified in your welcome email.

Summary of server details