[SOLVED] Notification emails not coming through.

[Kev7274]

Setup the email notifications through the GUI. I followed this layout..https://technotim.live/posts/proxmox-alerts/
The test email completes,but I never get the actual email.

The mail.log shows this....

connect to smtp.gmail.com[2607:f8b0:4002:c00::6d]:587: Network is unreachable

I have created an app password in gmail.

 

[Kev7274]

Putting
inet_protocols = ipv4
in
/etc/postfix/main.cf
fixed it.