Resolved Email not arriving

[Cyberwhoop]

Hi,

New here and hopefully someone at the forum can assist.

I do have an issue after Plesk update, email send to domains at server is not arriving / bounces.

Gmail send to own domain at server does not arrive Gmail supplies this error:
Diagnostic-Code: smtp; The recipient server did not accept our requests to connect. Learn more at Fix bounced or rejected emails - Gmail Help

Email is also not vissible in webmail (empty mailbox) so nothing does arrive.

Any idea where to start? Email did work fine until +/- 17th of July.

Plesk Onyx
Version 17.5.3 Update #15, last updated on July 28, 2017 04:19 AM
Running at Strato, Vitual Linux Server

Cheers
Marco

 

[eilko]

is the postfix mailservice still running?
aren't you blocking port 25?
something in the logs, like /var/log/maillog?

 

[TomBoB]

Hi,

The recipient server did not accept our requests to connect

Check your firewall. Is port 25 blocked?
An outside test from checktls.com should help pinpoint the issue.

Cheers,
Tom

 

[Cyberwhoop]

Thanks for the replies, I did find a solution in the knowledge base that worked...
In Plesk: home => tools & settings => service SMTP Server (Postfix)
Switched on that service and emails started to arrive
Maybe it was automatically switched off after the update, no clue but back on track now!

 

[mdraselkhan]

I'm using AWS Lightsail and had an issue where emails from Gmail, Yahoo, Outlook, iCloud, and other providers were not being received by my Plesk panel email—only emails from my own server domain were working.

The issue was that TCP port 25 was blocked. To send and receive emails properly, you need to ensure that TCP ports 25, 465, and 587 (for TLS) are open.