The Sendmail Content Management API (Milter) is designed to allow third-party programs access to mail messages as they are being processed in order to filter meta-information and content. It includes the milter shared library.
acquired package info from repodata DB: repodata/27175616bcfdcd3043efabc81dd49522eeafc71d5102c7877b737d6e80b97422-primary.sqlite.bz2
Sendmail milter development libraries and headers
Include development libraries and headers for the milter add-ons as part of sendmail.