I am having what appears to be the same problem as several other people with this setup. I haven't seen anyone find the answer yet though. I am able to receive e-mail with no problem, but I am getting some SASL authentication errors when I try to send e-mail out. The follwing is in the mail.log file when I try to send e-mail: Code: May 9 19:08:35 mail postfix/smtpd[10029]: connect from host[192.168.1.12] May 9 19:08:36 mail postfix/smtpd[10029]: warning: host[192.168.1.12]: SASL LOGIN authentication failed: authentication failure May 9 19:08:36 mail postfix/smtpd[10029]: lost connection after AUTH from host[192.168.1.12] May 9 19:08:36 mail postfix/smtpd[10029]: disconnect from host[192.168.1.12] I also see this in the auth.log: Code: May 9 19:08:36 mail saslauthd[9928]: pam_mysql - SELECT returned no result. May 9 19:08:36 mail saslauthd[9928]: DEBUG: auth_pam: pam_authenticate failed: User not known to the underlying authentication module May 9 19:08:36 mail saslauthd[9928]: do_auth : auth failure: [user=test] [service=smtp] [realm=thewhiterabbit.org] [mech=pam] [reason=PAM auth error] So it seems that saslauthd can't pull the needed info from the mysql database. Here are the contents of my pertinent config files: /etc/default/saslauthd: Code: # # Settings for saslauthd daemon # # Should saslauthd run automatically on startup? (default: no) START=yes PARAMS="-m /var/spool/postfix/var/run/saslauthd -r" PIDFILE="/var/spool/postfix/var/run/${NAME}/saslauthd.pid" MECHANISMS="pam" MECH_OPTIONS="" THREADS=5 OPTIONS="-c" /etc/pam.d/smtp: Code: auth required pam_mysql.so user=mail_admin passwd=<password> host=127.0.0.1 db=mail table=users usercolumn=email passwdcolumn=password crypt=1 account sufficient pam_mysql.so user=mail_admin passwd=<password> host=127.0.0.1 db=mail table=users usercolumn=email passwdcolumn=password crypt=1 /etc/postfix/sasl/smtpd.conf: Code: pwcheck_method: saslauthd mech_list: plain login allow_plaintext: true auxprop_plugin: mysql sql_hostnames: 127.0.0.1 sql_user: mail_admin sql_passwd: <password> sql_database: mail sql_select: select password from users where email = '%u' SASL portions of /etc/postfix/main.cf: Code: smtpd_sasl_auth_enable = yes broken_sasl_auth_clients = yes smtpd_recipient_restrictions = permit_mynetworks, permit_sasl_authenticated, reject_unauth_destination I am at a real loss here. All of the configs appear to be correct. Obviously the database itself works since the checking mail works fine. I did spot check things with PhpMyAdmin though and everything looks correct. Any thoughts on what could be wrong here? Thanks.
I have resolved the issue. It looks like several people were having this same problem so hopefully this helps someone else. The tutorial says to put the line: PARAMS="-m /var/spool/postfix/var/run/saslauthd -r" in the /etc/default/saslauthd file. However I looked at The Perfect Setup tutorial for Debian 4.0 and it suggests not adding that line, but rather modifying the Options line in the file like so: OPTIONS="-c -m /var/spool/postfix/var/run/saslauthd -r" I made that change, restarted postfix and saslauthd and sasl authentication is working perfectly now.