Binary package “mimedefang” in ubuntu intrepid

Electronic mail filter program for sendmail 8.12+

 MIMEDefang is an e-mail filter program which works with Sendmail 8.12
 and later. MIMEDefang filters all e-mail messages sent via SMTP.
 MIMEDefang splits multi-part MIME messages into their components and
 potentially deletes or modifies the various parts. It then
 reassembles the parts back into an e-mail message and sends it on its
 way.