self-extrcting Archives vs. DOS executables

[Ugo Bellavance]

Heinrich Thoerner wrote:

> Greetings,
>
> i'm new to MailScanner and this List, so please excuse me If my
> Question ist to FAQ'isch ;-)
>
> Is it possible to allow self-extracting .exe Files (Zips) and block
> any other .exe (DOS Executables) ? I've experimented with the
> filename/filetype Rules but could not made it work.
> (OS:Debian, MTA: Sendmail, Scanner:Mailsanner 4.30.3 with ClamAV)

It is possible if the file command recognizes the difference.  To test,
put a regular executable and a self-extracting zip .exe on your *nix
server and perform a file command on both.  If the text is different,
you are on a good start.

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