Documentation on how messages are reformatted and injected into the queue can be found in nullmailer-inject(1). Documentation on how messages are actually inserted into the queue can be found in nullmailer-queue(8). The process of sending queued messages is described in nullmailer-send(8).
The following table lists all the control files used by nullmailer.
control fileused by adminaddrnullmailer-dsn, nullmailer-queue allmailfromnullmailer-queue defaultdomainnullmailer-dsn, nullmailer-inject defaulthostnullmailer-dsn, nullmailer-inject doublebouncetonullmailer-dsn helohostnullmailer-send idhostnullmailer-dsn, nullmailer-inject maxpausenullmailer-send me nullmailer-dsn, nullmailer-inject pausetimenullmailer-send remotesnullmailer-send sendtimeoutnullmailer-send