Ok here's the problem i have:
The Courier-IMAP is running on the server but on the Plesk Services management it appears like it's down and when i press on the start service button the status stays the same. There isn't any error messages coming up. What seems to be the problem?

 

Even better. The authentication is broken.

J

 

Search for the "Mail Problems with 7.5" threads. Here's one - read the whole thread, as there are actually 2 things you need to do: the mchk thing, and adding the lines to the config file.

Those two things are both "broken" for most people after an update to 7.5. They didn't test their build well enough before releasing it. lol.

 

Watchdog error message on Courier

What did you do to resolve this bug?
(Courier is up, Watchdog shows it is down)
I have the same issue.
Thx,
Lars