nullmailer-queue - insert mail messages into the queue
This program reads a formatted mail message from standard input and
safely injects it into the outgoing mail queue.
The data sent into standard input is expected to have the following
format: one line containing the envelope sender, one or more lines
containing the recipients, a single blank line, and then the contents
of the message exactly as it is to be transmitted to the destination.
All lines are terminated with a single line-feed character.
All addresses must contain a fully-qualified domain name.
Exits 0 if it successfully queues the message.
If it failed to queue the message, it exits 1 and prints an error
message to stdandard output.
If this file is not empty, all recipients to users at either
"localhost" (the literal string) or the canonical host name (from
are remapped to this address.
This is provided to allow local daemons to be able to send email to
"somebody@localhost" and have it go somewhere sensible instead of
being bounced by your relay host.
The directory into which the completed messages are moved.
The directory in which messages are formed temporarily.
A pipe used to trigger
to immediately start sending the message from the queue.