Resolved Email Forwarding not working

[Mathias]

Server operating system version

Almalinux

Plesk version and microupdate number

Latest update

Hello

Email Forwarding doesn't work anymore. It worked well a few days ago, but now emails to domain.net aren't forwarded to either Yahoo nor Gmail. What can I do?

 

[Mathias]

It seems that there is an issue with the mail server. Incoming emails aren't delivered. Outgoing emails work well.

 

[Sebahat.hadzhi]

Hello, @Mathias . What is the mail configuration of the domain you are experiencing troubles with? Have you checked the mail log /var/log/maillog for the addresses the forwarder is not working for? Please provide as many details as possible. It is difficult to identify a potential issue with limited information.

 

[Mathias]

Hello, thanks for your reply. I found out that my firewall setting for SMTP (mail sending) was the reason. I only allowed incoming from localhost and deny all other. I made this to reduce spammers or hackers. Email delivery worked always well with that firewall setting, just stopped working since a few days. I attached a screenshot.

 

[Mathias]

Just for your understanding. I didn't change the firewall setting for SMTP submission server and IMAP/POP (Dovecot). Only for outgoing emails.