Undelivered Mail Returned to Sender

[Mail Delivery System]

This is the mail system at host planetmail01.outgw.tn.

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

<pkg-multimedia-maintainers at lists.alioth.debian.org>: host
    smtp.planet.tn[193.95.123.24] said: 579 message content is not acceptable
    here (in reply to end of DATA command)
-------------- next part --------------
An embedded message was scrubbed...
From: <pkg-multimedia-maintainers at lists.alioth.debian.org>
Subject: K??e??ck?? ?a?? +791?79?6???
Date: Wed,  9 Oct 2013 06:30:16 +0200 (CEST)
Size: 873
URL: <http://lists.alioth.debian.org/pipermail/pkg-multimedia-maintainers/attachments/20131009/586e2a72/attachment.mht>