RES: [Mimedefang] block binaries attachments

Wed Sep 17 09:53:01 EDT 2003

Do you know if there is a way to unzip compacted files to check for prohibited attachments extensions?

Thanks,

Rodrigo.

-----Mensagem original-----
De: wrolf.courtney at donovandata.com [mailto:wrolf.courtney at donovandata.com] 
Enviada em: quinta-feira, 11 de setembro de 2003 13:40
Para: mimedefang at lists.roaringpenguin.com
Assunto: Re: [Mimedefang] block binaries attachments

sub filter_bad_filename is in mimedefang-filter.example, at least in
MIMEDefang 2.36.

Wrolf Courtney
Donovan Data Systems, Inc.
(212) 633-5470

                      Fredrik Hansen                                                                                                                 
                      <fredrik.hansen at nykoping.nu>           To:      mimedefang at lists.roaringpenguin.com                                            
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                      mimedefang-admin at lists.roaring         Subject: Re: [Mimedefang] block binaries attachments                                    
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                      09/11/2003 11:42 AM                                                                                                            
                      Please respond to mimedefang                                                                                                   

On Thu, 11 Sep 2003, Rodrigo Figueiredo Teixeira wrote:

>
> I'm planning to install MIMEDefang in order to block all emails with
binaries attachments.
>
> I downloaded the necessary software and saw the installations
instructions, however I didn't find an explanation on how to block all
emails with binaries attachments.
>
> Does anyone can help me?
>
A good start would be to check for MZ in the first bytes of the file.
(Windows executables)
ie. 'head -c 2 <file>'
Maybe not a hightech solutions, but that's what i can come up with in 5
secs.
Best Regards,
Fredrik Hansen

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