Description of problem:

I sometimes get e-mails from bugzilla with the wrong timestamps.

E.g. the email sent for this comment:

https://bugzilla.redhat.com/show_bug.cgi?id=1305887#c2

which on the bugzilla page is timestamped "2016-02-17 17:30:45 EST", has a e-mail header saying:

Date: Tue, 9 Feb 2016 14:00:30 +0000 (2016-02-09 15:00:30)

The bad date header corresponds to the original creation time of the bugzilla ticket.

The Received headers are reasonable;

Received: from bugweb-03.app.bz.hst.phx2.redhat.com (bugweb-03.app.bz.hst.phx2.redhat.com [10.5.117.33])  by mx1-phx2.redhat.com (8.14.4/8.14.4) with ESMTP id u1HFN0Sp042290     (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO)       for <mattias.ellert.se>; Wed, 17 Feb 2016 10:23:01 -0500
Received: from bugweb-03.app.bz.hst.phx2.redhat.com (localhost [127.0.0.1])       by bugweb-03.app.bz.hst.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id u1HFN0JY031493    for <mattias.ellert.se>; Wed, 17 Feb 2016 10:23:00 -0500
Received: (from apache@localhost) by bugweb-03.app.bz.hst.phx2.redhat.com (8.14.4/8.14.4/Submit) id u1HFN0tc031480;       Wed, 17 Feb 2016 10:23:00 -0500


Version-Release number of selected component (if applicable):

4.4

How reproducible:

Occasional - it has not been a one-off since it has happened a few times. But most of the e-mails sent by Bugzilla have good Date headers.

Steps to Reproduce:
1. Not sure how to trigger it.

Actual results:

E-mails sent with wrong time stamp.

Expected results:

E-mails sent with correct time stamp.