Reduced the mixing/concatenating of str and unicode objects.
Optimized list generation in Domain class.
# All parameters are described in pgsql_table(5) / PGSQL PARAMETERS## The hosts that Postfix will try to connect to and query from.hosts=localhost# The user name and password to log into the pgsql server.user=postfixpassword=some_password# The database name on the servers.dbname=mailsys# XXX see create_optional_types_and_functions.pgsql# * line 9: type sender_login# * line 26: function postfix_smtpd_sender_login_map + comment above## The SQL query template used to search the database#query = SELECT login FROM postfix_smtpd_sender_login_map('%u', '%d')