Description of problem:
Postfix was compiled without MySQL support, but this is needed for bigger mail
systems.

Version-Release number of selected component (if applicable):
postfix-2.3.3-2


Steps to Reproduce:
1. enter some lines like that in the main.cf
     alias_maps = mysql:/etc/postfix/mysql-aliasses.cf
2. reload postfix  
Actual results:
postfix will stop working with the error in the logfile:
"postfix/local[4807]: fatal: unsupported dictionary type: mysql"

Expected results:
working MySQL support

Additional info:
See http://www.postfix.org/MYSQL_README.html how to do this.