Fixed #3196

Till Brehm

2016-06-30 437887f7cc8482aaf9a641ffc08694e4bea91f1a

 server/plugins-available/postfix_server_plugin.inc.php

@@ -162,8 +162,8 @@
      }      
      
      if($app->system->is_installed('dovecot')) {
         $temp = exec("postconf -n virtual_transport", $out);
         if ($mail_config["mailbox_virtual_uidgid_maps"] == 'y') {
            $temp = exec("postconf -n virtual_transport", $out);
            // If dovecot switch to lmtp
            if($out[0] != "virtual_transport = lmtp:unix:private/dovecot-lmtp") {
               exec("postconf -e 'virtual_transport = lmtp:unix:private/dovecot-lmtp'");