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/49812e1cb655fdb98aae3f2bca46c110f68209046fc0d0ee105a88e91d47c87d-primary.sqlite.bz2
Sendmail milter development libraries and headers
Include development libraries and headers for the milter add-ons as part of sendmail.