Hi @Sebahat.hadzhi,
thank you for your suggestions. I believe the issue is finally resolved. The root cause was that I recently regained multiple domains from my hosting provider and forgot to update the server hostname accordingly.
As a small improvement suggestion, it would be great if...
Hello Plesk Community,
I am experiencing an issue where I cannot send emails from my Plesk instance. The instance is configured to use Mailbox.org as the SMTP server on port 465. The credentials work correctly outside of Plesk, so I suspect the problem is related to the Plesk setup itself...