diff -Nur e-smith-email-5.6.0/root/usr/local/sbin/smtp-auth-proxy.pl e-smith-email-5.6.0_bz9554/root/usr/local/sbin/smtp-auth-proxy.pl
--- e-smith-email-5.6.0/root/usr/local/sbin/smtp-auth-proxy.pl	2016-02-05 00:52:20.000000000 +0100
+++ e-smith-email-5.6.0_bz9554/root/usr/local/sbin/smtp-auth-proxy.pl	2016-06-03 09:34:10.596973514 +0200
@@ -30,7 +30,7 @@
     $prop->{SystemName} = $config->get_value('SystemName');
     $prop->{DomainName} = $config->get_value('DomainName');
     $prop->{PeerPort} = $smtp_proxy_rec->prop('PeerPort') || 25;
-    $prop->{Helo} = $config->get('smtpd')->prop('HeloHost') ||
+    $prop->{Helo} = $config->get('qpsmtpd')->prop('HeloHost') ||
         "$prop->{SystemName}.$prop->{DomainName}";
 }