<messaging> A function of some word processing software (e.g. Microsoft Word) that produces multiple instances of a document by substituting different text strings from a database in place of certain field markers. This is often done with envelopes, resumes, spam, and various other mass mailings.
Try this search on Wikipedia, OneLook, Google
Nearby terms: mail gateway « mail hub « mailing list « mail merge » mail path » .mailrc » mail server