Email Services for 42d.io and Wiki42d are setup to use Postfix. The email address in use is “dat@42d.io”
In the current setup dat@42d.io email box exists only on Google Workspaces.
For Wiki42d, password email resetting is now supported.
When the Forgot password link is clicked, Dokuwiki sends an email message to the Postfix mail queu. The Postfix MTA is configured for SMTP Relay and sends email to Google Workspace and to the intended recipient.
A Captcha plugin is installed which will require the user to answer a math question after 3 failed attempts.
The following web links were used in setting this up. It's a two-step process.
https://support.google.com/a/answer/2956491?hl=en
The settings are
165.22.236.60
2604:a880:cad:d0::d29:8001
Note: Generate an App Password for Postfix was not required nor is 2-Step Verification enabled.
The Relay host is set to smtp-relay.gmail.com and port 587
For Troubleshooting mail, check /var/log/maillog.