Per User Attachment filter
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!