pop3 login

[stefanr]

oh no, im sorry that i must open now another thread, but i install yesterday my first "hot working" domain, i tried to install on the user desktop pc an thunderbird as email client, but i cant login with a pop3 conection and user+pass.
I search the hole night in the forum, and i find a lot of intrested threads, but nothing help me to get work pop3 login.

the facts:
- debian sarge
- ispconfig
- courier (pop3, pop3s, imap, imaps) as mailserver
- webmail (have nothing to do with the problem, but
on this i can me login with the user@domain and there pass
- thunderbird as email client

kind regards

STEFAN