diff -Nur -x '*.orig' -x '*.rej' qpsmtpd-0.95/qpsmtpd-forkserver mezzanine_patched_qpsmtpd-0.95/qpsmtpd-forkserver
--- qpsmtpd-0.95/qpsmtpd-forkserver	2015-02-11 23:00:25.000000000 +0100
+++ mezzanine_patched_qpsmtpd-0.95/qpsmtpd-forkserver	2015-12-16 22:09:28.782321968 +0100
@@ -246,6 +246,7 @@
         my ($client, $hisaddr) = $server->accept;
 
         next if !$hisaddr;
+        $client->sockopt(SO_KEEPALIVE,1);
         IO::Handle::blocking($client, 1);
 
         # get local/remote hostname, port and ip address