I've one problem with sendmail. I'm using a certificate based relaying.
The clients are verified from the system, but the SMTP connection are
not used to sent mail.
In /var/log/mail.info the following lines are logged:
Apr 12 12:47:50 etch sm-mta[13211]: STARTTLS=server, relay=client
[10.1.1.1], version=TLSv1/SSLv3, verify=OK, cipher=DHE-RSA-AES256-SHA,
bits=256/256
Apr 12 12:47:50 etch sm-mta[13211]: l3CAlnL8013211: AUTH decode64 error
[1 for "="]
It's an up-to-date etch but with a sarge kernel
(kernel-image-2.6.8-2-686), because a reboot of the system is not a
good option.