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Issue SMTP Relay not working anymore

Martin.H

Regular Pleskian
Since one week (cant say which Plesk version exactly) on ALL of my Servers which are using SMTP relays Mail is not working at all!
Also I can NOT change settings for the SMTP Relay.
As soon as I change something and click save it shows "successfully saved" but then it reloads the page and shows the old settings again.
So there is no way to update the settings.

Happened on these OS:
1. Debian 9.13
2. CentOS 7.8

Both currently on Plesk Obsidian 18.0.31

Would be nice if this would be fixed quickly.
Also since then it does not send any Mails out (through the Relay, with PHPMailer it works with individual SMTP settings) which is really hard, as there is no warning/log which provides more infos.

I just have the SMTP Relay installed, nothing else, related to Mail. Ports also are open, as it always worked before.


@IgorG may you can have a look at it?
EDIT: official Bug Report: #358691
 
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