nullmailer-smtpd - sendmail emulator interface for nullmailer

       This  program  is a front end program for nullmailer-queue.  It is invoked by nullmailer-inject when mail
       senders request a sendmail-bs SMTP interface for sending email.  This program accepts SMTP  protocol  on
       standard  input.   On successful completion as far as the DATA command, this program executes nullmailer-queue directly with the appropriate sender and recipients.  See the  documentation  for  nullmailer-queue
       for details on how messages are queued.

       nullmailer-smtpd - sendmail emulator interface for nullmailer

       Always exits 0.  Any errors are notified to the caller by SMTP extended error codes.

nullmailer-queue(8)

                                                                                             nullmailer-smtpd(8)

nullmailer-smtpd