- pwcheck_method: saslauthd
- auxprop_plugin: sql
- mech_list: plain login
- allow_plaintext:true
- sql_engine: mysql
- sql_user: -----------
- sql_passwd: ----------
- sql_hostnames: localhost
- sql_database: postfix
- sql_select: SELECT password FROM mailbox WHERE username = '%u' AND domain = '%r'
- sql_verbose: yes
