Undelivered Mail Returned to Sender

[Mail Delivery System]

This is the mail system at host chaingun.noernet.de.

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

<dennis.noermann@googlemail.com> (expanded from <dennis.noermann@noernet.de>):
    host gmail-smtp-in.l.google.com[173.194.69.27] said: 552-5.7.0 Our system
    detected an illegal attachment on your message. Please 552-5.7.0 visit
    http://support.google.com/mail/bin/answer.py?answer=6590 to 552 5.7.0
    review our attachment guidelines. gc8si4544393bkc.122 - gsmtp (in reply to
    end of DATA command)
-------------- parte successiva --------------
Un messaggio incapsulato è stato rimosso...
Da:         tp@lists.linux.it
Oggetto :   Re: Extended Mail System
Data:       Thu, 4 Apr 2013 12:00:55 +0200
Dimensione: 41505
URL:        <http://lists.linux.it/pipermail/tp/attachments/20130404/f84c9cb4/attachment-0001.mht>