That's exactly what I want to do. I just want to block dangerous extensions. 
nothing more. Anti-virus & spam is already handled elsewhere. what do i need to 
do to the filters to achieve just this function? Thanks.
- Fabian S.


On Mon, 04/28/2014 02:09 PM, Mișu Moldovan <[email protected]> wrote:
> On 28 April 2014 20:41, Fabian Santiago <[email protected]> wrote:
> > Thanks. Do you know if mimedefang needs to be set to run as a specific 
> > user, such as 'axigen'?
> 
> AFAIR, we run MIMEDefang as user defang and configured ClamAV to run
> as the same user at the beginning. Then I got sick that almost every
> time the queue grew unexpectedly it was the AV's fault and I disabled
> it entirely and only relied on blocking a list of executable
> extensions in our filter, including inside archives.
> 
> I think we also blocked encrypted ZIPs, so the way to send a file with
> a problematic extension would have been either to change its extension
> (eg. EXE->EX_) or encrypt it in some other way.
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