diff -Nur -x '*.orig' -x '*.rej' Mail-DMARC-1.20141206/lib/Mail/DMARC/Report/Send/SMTP.pm mezzanine_patched_Mail-DMARC-1.20141206/lib/Mail/DMARC/Report/Send/SMTP.pm
--- Mail-DMARC-1.20141206/lib/Mail/DMARC/Report/Send/SMTP.pm	2016-05-02 19:27:07.287415453 +0200
+++ mezzanine_patched_Mail-DMARC-1.20141206/lib/Mail/DMARC/Report/Send/SMTP.pm	2016-05-02 19:26:50.224415665 +0200
@@ -189,10 +189,9 @@
         ) or croak "unable to add report!";
 
     my $email = Email::MIME->create(
-        header_str => [
+        header => [
             From => $self->config->{organization}{email},
             To   => $to,
-            Date => $self->get_timestamp_rfc2822,
             Subject => $self->get_subject( $agg_ref ),
         ],
         parts => [@parts],