Undelivered Mail Returned to Sender

[Mail Delivery System]

This is the mail system at host SMTPOUT03.DKBAL.mailcore.com.

I'm sorry to have to inform you that your message could not
be delivered to one or more recipients. It's attached below.

For further assistance, please send mail to postmaster.

If you do so, please include this problem report. You can
delete your own text from the attached returned message.

                   The mail system

<jan at elmborg.dk>: host mxcluster1.one.com[91.198.169.8] said: 550 5.7.1 Blocked
    by email filter (c3f14723-a85c-11e4-8e48-b82a72d854f0) (in reply to end of
    DATA command)
-------------- next part --------------
An embedded message was scrubbed...
From: "Registration Incomplete, pending $1000 payout.............................................." <pkg-mozilla-maintainers at lists.alioth.debian.org>
Subject: Registration Incomplete, pending $1000 payout.............................................. thought you may be interested in this mailing.
Date: Fri, 30 Jan 2015 08:48:25 +0000
Size: 3546
URL: <http://lists.alioth.debian.org/pipermail/pkg-mozilla-maintainers/attachments/20150130/7616a693/attachment.mht>