Wikipedia
MIMEDefang
MIMEDefang is a GPL licensed framework for filtering e-mail. It uses sendmail's " Milter" API, some C glue code, and some Perl code to let the user write high-performance mail filters in Perl.
MIMEDefang can be used to:
- Block viruses (e.g. using Clamav)
- Block or tag spam (e.g. using SpamAssassin)
- Remove HTML mail parts
- Add boilerplate disclaimers to outgoing mail
- Remove or alter attachments
- Replace attachments with URLs
- Implement sophisticated access controls.