Per User Attachment filter

Hi,
I'm running Debian(Sarge) with ISPConfig and Postfix as MTA. I need to filter out certain attachments (like: .ppt, .exe) and drop it. I have found the 'DEFANG' settings in '.html-trap.rc' where I'm able to define for each user a different MIME-Type defanging, that's exactly what I was looking for but now I need to drop Attachments with a certain MIME-Type and send instead of the attachment a message which informs the recipient about the droped attachment. But it should also be per user, not Systemwide. Please can you tell me how to manage this, thanks in advance!
Rix

 

The current recipe is already per-user, and it notifies the recipient if an attachment was removed.

 

I see, but how can I define particular extensions like the .pps, .exe to be dropped rather then defanged, cause I need some extensions to be defanged some dropped and some delivered as they are.
Thanks in advance

 

You can do this with the Anomy Sanitizer: http://directory.fsf.org/anomysanitizer.html

 

Thanks Falko, that's it!