Hi! I know this has been discussed often enough, but though I've read a lot of postings about this topic I can not solve it... I've set set debug levels to the maximum values possible (for both postfix and SASL) and get the following error (which is not very helpful to me): postfix/smtpd[5036]: Read 49 chars: AUTH PLAIN AG0wMHJlZGJpQG0wMHJlLmRlADVta postfix/smtpd[5036]: warning: SASL authentication failure: Password verification failed m00re postfix/smtpd[5036]: warning: unknown[62.214.237.110]: SASL PLAIN authentication failed m00re postfix/smtpd[5036]: Write 34 chars: 535 Error: authentication failed?? My smtpd.conf looks like: log_level: 7 pwcheck_method: auxprop auxprop_plugin: sql mech_list: plain login sql_engine: mysql sql_hostnames: 127.0.0.1 sql_user: postfix sql_passwd: passwort sql_database: postfix sql_select: select password from mailbox where username='%u@%r' At first I thought the sql_select is wrong, but unfortunately, SASL does not connect to MySQL at all. What could cause this? My system is Ubuntu 6.06 LTS (means I have version 2.1.19.dfsg1-0.1ubuntu2 installed). Besides doing the auxprop approach I also tried authdaemond, but with no success either. I have already switched from a chrooted postfix to normal operation, but I still get postfix/smtpd[23588]: warning: SASL authentication failure: cannot connect to Courier authdaemond: No such file or directory The smtpd.conf I used for this approach is: pwcheck_method: authdaemond log_level: 7 mech_list: PLAIN LOGIN authdaemond_path: /var/run/courier/authdaemon/socket The socket file exists and is readable by the user postfix... whats wrong? Hopefully, someone can help me. cheers Jens -- "Feel free" - 10 GB Mailbox, 100 FreeSMS/Monat ... Jetzt GMX TopMail testen: www.gmx.net/de/go/mailfooter/topmail-out