Bug#680476: release-notes: Note for SASL systems upgraded from Squeeze to Wheezy

[Russell Coker <russell@coker.com.au>]

Package: release-notes
Severity: normal

If a system using SASL authentication via a MySQL database is upgraded from
Squeeze to Wheezy then it will stop working with no clear explanation.

In the configuration file (/etc/postfix/sasl/smtp.conf or equivalent for
other MTAs) the "auxprop_plugin: mysql" line has to be removed and replaced
with the following two lines due to a change in the way SQL plugins are
managed:

auxprop_plugin: sql
sql_engine: mysql

Also the SQL query needs to have “%u” replaced with “%u@%r” because we now
have user and realm provided separately.