In the process of setting up SASL and StartTLS under Postfix, I got this in the log:
“warning: SASL authentication failure: cannot connect to saslauthd server: No such file or directory”
It took me some minutes to figure out what was wrong. Obviously it has to do with postfix not being able to connect to the saslauthd server. The question is just, why? I went with a hunch of permissions … and wasted some time, so if you get the error, here is what solved it for me. In
/etc/default/saslauthd
You have to remove the default line and let saslauthd create its file under the postfix dirstructure. That is
> OPTIONS="-c -m /var/spool/postfix/var/run/saslauthd < OPTIONS="-c -m /var/run/saslauthd"
And then
/etc/init.d/postfix restart
Not rocket science, but I chased a wild goose looking at permissions for 15 minutes before figuring out what was wrong.