Attachment Filter

["Dan Tappin" <dan.tappin@xxxxxxxxxxxxxxx>]

First off can someone point me to the PO list archive - I have lost the link.  It is beyond me why Tenon does not post this on their site!

 

What is the best way to filter for attachments?  I have added a body filter that traps my specified 3 character file extension but it also traps plain text (i.e. *.abc, *.xyz etc).

 

For example I currently have the following blocked:

 

exe

pif

scr

 

Which works great.  All those great Windows bugbear viruses get blocked.  The only issue is that if I type star-dot-exe in any message this also gets blocked.  I hope this makes sense.  I can't actually type an example with out my server blocking it.

 

I also tried *.*.abc because these viruses hide the real extention behind a fake one (i.e. filename.abc.xyz).

 

Any ideas / suggestions from the list?

 

Thanks,

 

Dan

 

P.S.

 

Windows sucks :^)