Thank you for your hint, Sebahat. This took me to the solution. :D
All settings for outgoing messages were set to "Custom value for the subscription" with the setting "0 messages". I don't know why this setting was set by default after deleting and recreating the subscriptions.
Thanks a lot...
Thanks for your reply, @Sebahat.hadzhi. Since the affected customers do not use the plesk mail service / server, I have deactivated the email service. But even if i activate it, the issue persists. In the WordPress log I do not see any relevant errors.
Enabling the Plesk debug mode is not...
Hello dear community,
I have a problem and hope someone can help me:
Short version:
I am a Plesk reseller. I had deleted and later recreated several Plesk subscriptions, each with just a primary domain and a WordPress instance. The WordPress instances were reinstalled correctly, but the...