E-mail filtering framework using Sendmail's Milter interface
Description
MIMEDefang is an e-mail filter program which works with Sendmail 8.12
and later, or Postfix. It 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.
There are some caveats users should be aware of before using MIMEDefang.
MIMEDefang potentially alters e-mail messages. This breaks a "gentleman's
agreement" that mail transfer agents do not modify message bodies. This
could cause problems, for example, with encrypted or signed messages.
