MAPI :

Mapi compliance :

MAPI (Messaging Application Programming Interface) is a standardised set of functions developped by Microsoft. These functions have been extended since years by a great number of third party sofware writers.

MAPI enable Windows applications writters to use the Windows messaging sub-system. By using it, any application acquires mail sending capabilities, with no need for the programm writers to 'invent the wheel again' each time.

Most of the recent mail clients are MAPI compliant, or may easily become such. You'll find on the internet a lot of informations and tutorials about how to make your mail client become MAPI compliant and on the consequences of such a choice...