diff -Nur smeserver-qpsmtpd-2.4.0/root/etc/e-smith/templates/var/service/qpsmtpd/config/plugins/13bcc smeserver-qpsmtpd-2.4.0_bz8990/root/etc/e-smith/templates/var/service/qpsmtpd/config/plugins/13bcc
--- smeserver-qpsmtpd-2.4.0/root/etc/e-smith/templates/var/service/qpsmtpd/config/plugins/13bcc	2008-10-07 17:05:17.000000000 +0200
+++ smeserver-qpsmtpd-2.4.0_bz8990/root/etc/e-smith/templates/var/service/qpsmtpd/config/plugins/13bcc	2015-08-06 17:48:45.057550350 +0200
@@ -1,4 +1,7 @@
 {
      return "# bcc disabled" unless ($qpsmtpd{Bcc} eq "enabled");
-     return "bcc mode " . $qpsmtpd{BccMode} . " all " . $qpsmtpd{BccUser};
+     my $user = $qpsmtpd{BccUser} || '';
+     return "# bcc user not set" if $user eq '';
+     $user .= '@' . $DomainName unless $user =~ m/\@/;
+     return "bcc mode " . $qpsmtpd{BccMode} . " all " . $user;
 }