Postfix per-user per-domain extension block

Does anyone know how can I do this with postfix mechanisms?

Or maybe with amavisd-new / clamav / spamassassin ?

 

What specifically are you trying to do?

 

I use the following configuration to stop some file types from entering the server:

main.cf file:

Code:

mime_header_checks = regexp:/etc/postfix/mime_header_checks

/etc/postfix/mime_header_checks file:

And many oder file extensions.

This is affectign every user from all domains. how can I do that on a per-user basis? Or perhaps, per-domain.

 

You could use procmail for it. Take a look at

Code:

man procmailex

and http://www.howtoforge.com/procmail_tips_recipes