Email Logins Stopped Working After Moving Accounts to Other Server

After transfer cPanel accounts to another server and all email logins stopped working completely. Everything works fine except email, you get “wrong password” error. You also try to update password via cPanel and still got the same. Deleted all email accounts and re-created them again using old passwords, still can’t login also.

Here the solution…

Login to your server using SSH as root, then run these commands:

# service courier-authlib restart
# service courier-imap restart