In /var/log/mail.log I get such error message:
Jul 25 01:33:11 ubuntu8 postfix/smtpd[10863]: warning: SASL authentication problem: unable to open Berkeley db /etc/sasldb2: No such file or directory
But the database is here:
# ls -l /etc/sasldb2
-r--r----- 1 postfix sasl 12288 2010-07-25 01:29 /etc/sasldb2
How can I fix/diagnose that issue?