[falko]

Then I guess saslauthd still isn't running... Do you see it when you run

ps aux

?

I suggest that you have a close look at the saslauthd part of the Debian Sarge howto and try to correct your system configuration: http://www.howtoforge.com/perfect_setup_debian_sarge_p4

I recommend that you use an SSH client like PuTTY (for Windows) so that you can copy and paste all the commands from the tutorial and avoid typos.