PMDF's callable send facility is a single procedure, PMDF_send, which may be used to send (enqueue) mail messages of local origin; that is, to originate mail from the local host. Because the callable SEND routine is not as flexible as the API routines and will take possibly undesirable, but necessary, authentication steps, the PMDF API routines should generally be used by programs which need to re-send, forward, gateway, or otherwise route mail messages.¹
Note:
Callable SEND may be used simultaneously with the PMDF API routines.