postfix cannot connect to saslauthd

[H Xu <xusubsc@gmail.com>]

Hello,

I've just configured a smtp server on Debian 6.0.1, but the smtp auth 
always fails. Here is the log from mail.log:

Apr 29 05:05:49 hostname postfix/smtpd[13269]: warning: SASL 
authentication failure: cannot connect to saslauthd server: No such file 
or directory
Apr 29 05:05:49 hostname postfix/smtpd[13269]: warning: 
localhost[127.0.0.1]: SASL login authentication failed: generic failure
Apr 29 05:05:49 hostname postfix/smtpd[13269]: > localhost[127.0.0.1]: 
535 5.7.8 Error: authentication failed: generic failure
Apr 29 05:05:51 hostname postfix/smtpd[13269]: smtp_get: EOF

I've checked that saslauthd is running.

Here is the smtp.conf in /etc/postfix/sasl:

pwcheck_method: saslauthd
mech_list: PLAIN LOGIN
log_level: 7
saslauthd_path:/var/run/saslauthd/mux

smtpd is running chrooted.

I've tested saslauthd with testsaslauthd, and everything is right with it.

So what could I do? I can't figure out the reason.

I'm a newbie here. Thanks.


Regards,
H Xu
04/30/2011