Hi Venu, > As far as my knowledge we can restrict certain extensions in exchange i,e > IN global settings--->internet message format you can do it. Thanks! Any more specific details, i.e. exactly what steps need to be done? Delete the extensions from the listed MIME types? Or add a "New" type? Or other? Also, I have many independent domains on one Ex2k3 server (service provider situation) and I need to be able to do this on a per-domain basis, e.g. one client says "don't allow any .vbs attachments to come to me" and others say "don't delete my .vbs attachments!". Best regards Mike Salim >> Is it possible to configure exchange to block emails that have >> attachments >> by extension e.g. .vbs etc. ?