I have a problem.
In webmail.mydomain.com i, enter my user and password.

I click, and delay 20 or 30 seconds and send me :

Either you have logged in incorrectly or your login has expired. Please login again.

I try, but not is posible enter.

I restart the plesk.
I try in another machine with another provider ISP.

Any idea or help me?

thanks

I am having the same problem and I think I know what is causing the issue.

Prior to my system restored, I had a field which said 'domain' and it would list the domain name under the username and password. After the system restore, this is gone.
Now does anyone know how to configure this setting back, so the domain name will appear again?
I assume this is because IMP wasn't properly configured after the restore.....to tell you truth they forgot a lot of settings...plesk admin passwords, plesk licenses..but that is another story)
Anyone can help?
Thanks
David

Actually in the imp faq on the horde website it talks about the very issue to have multiple vhosts.
http://www.horde.org/faq/admin/config/index.php#c8
Can anyone send me their /horde/imp/config/defaults.php3 script so I can do a diff on file and see what is supposed to be there?
Thanks