anubis 4.1.1+dfsg1-3.1 (amd64 binary) in ubuntu trusty

 GNU Anubis is an intermediate layer between a mail user agent (MUA) and a mail
 transport agent (MTA), receiving messages from the MUA, applying to them
 a set of predefined changes and finally inserting modified messages into an MTA
 routing network. The set of changes applied to a message is configurable on
 a system-wide and per-user basis. The built-in configuration language used for
 defining sets of changes allows for considerable flexibility and is easily
 extensible.