I got this annoying problem, while my costumers are completely restored and have their mail working, my admin backup failed partially so i had to restore some files manually. I noticed that in /home/admin the pop and imap folders were missing so i restored them which gave me my mail accounts back. But when i try to login it says login failed, probably because exim can't find the correct user of it's path. Can anybody say what files are required for the login? I tried to compare the admin account with others but no luck 
any help is appreciated.
any help is appreciated.