I have recently followed this tutorial to set up a mailserver on my Debian Linux box.
When I try to authenticate myself with telnet it just kicks me out if I don't specify a domain name and when I do authentication fails because there is no such user as 'firstname.lastname@example.org'.
Here is from auth.log:
Dec 30 04:27:24 [DOMAIN] dovecot-auth: pam_unix(dovecot:auth): authentication failure; logname= uid=0 euid=0 tty=dovecot ruser=[USER]@[DOMAIN].[TLD] rhost=127.0.1.1
What have I done wrong. I also tried logging on with Thunderbird without any luck.