change postfix and shorewall templates
Fix main.cf
Edited main.cf
Ensure default value is used if the attributes are not specified
Merge branch 'master' into change-postfix-shorewall
Postfix: include transport_maps recipe in the default
Fix conflicts
Missing mailbox_size_limit default value and fix shorewall rule
Merge pull request #20 from nhannguyen/change-postfix-shorewall

Change postfix shorewall