The mailing list for listmasters using Sympa

[Sven Hartge <address@concealed>]

Hello .*,

Using Sympa-6.2.66 (latest stable at time of writing) I want to create a 
scenario for a newsletter mailinglist that should do the following:

1) rejects any mail with file attachments (i.e. office documents, PDF, 
PNG, JPG, etec.)
2) sends all non-attachment containing mails to the editors ("editorkey).

The reason for rejecting mails with attachments before sending them to 
the editors is that frankly, we do not trust the mostly non-technical 
editors to catch a mail with a file attachment before clicking the 
"propagate" button.

It looks like this:

---------8<------------
title.gettext THM Newsletter

match([header->Content-Disposition],/attachment/) 
smtp,dkim,md5,smime    -> reject(reason='send_multipart')
match([header->Content-Type],/multipart\/mixed/) 
smtp,dkim,md5,smime    -> reject(reason='send_multipar')
true()     smtp,dkim,smime,md5  -> editorkey
---------8<------------

And this works but for one case: If the mail has an S/MIME signature, 
then even mails with attachments are passed to the editors.

I now have bonked my head against this for two days, looked at 
log_level=3 debug outout but I cannot find a way to make this work for 
signed mails.

To me it looks like a bug where the MIME structure is not unraveled far 
enough to find the Content-Type or Content-Disposition headers in the 
deeper levels.

Mit freundlichen Grüßen,
Sven Hartge

--
Dipl.-Inform. (FH) Sven Hartge
Technische Hochschule Mittelhessen
- University of Applied Sciences  -
    IT-Services Bereich Gießen
Server-, Dienst- und Netz-Administration

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Description: S/MIME Cryptographic Signature