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cyrus sasl

Q. I've recently changed email user account password using passwd command, for one my postfix email server which requires SMTP authentication before sending an email. Now following error is logged into my /var/log/maillog file:

ERROR: Password not accepted from server: 535 5.7.0 Error: authentication failed: authentication failure

How do I solve this problem under Red Hat enterprise Linux running Postfix with SASL authentication?
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Q. I’m running Redhat Enterprise Linux 4.5 server along with Postfix and Cyrus mail server. However I’m getting following error in my log files:

Jun 10 18:00:04 server postfix/smtpd[7280]: sql_select option missing
Jun 10 18:00:04 server postfix/smtpd[7280]: auxpropfunc error no mechanism available

How do I fix this error? I’m not using mysql for postfix.

A. The cyrus software comes with various plugin. The cyrus-sasl-sql package contains the Cyrus SASL plugin which supports using a RDBMS for storing shared secrets.

If you are not using MySQL, just remove the plugin using rpm command:

# rpm -ev cyrus-sasl-sql

Note if you are using Debian or Ubuntu remove libsasl2-modules-sql package:
# apt-get remove libsasl2-modules-sql

Also on RHEL 3 / 4, make sure that file /etc/openldap/slapd.conf is owned by the user ldap:
# chown ldap.ldap /etc/openldap/slapd.conf

Other option is to configure the sql module. Now there should not be any sort of error in /var/log/messages or /var/log/maillog file.