Processing incoming mail
MMDF receives incoming mail from each channel's
How MMDF handles incoming mail is illustrated in
Each message is delivered using this procedure:
determines the destination of
the message and then designates the channel to use to deliver the mail.
MMDF selects a channel:
Mail destined for the local machine goes to the local channel.
When the machine is local, but the user is not, mail goes
If mail requires further processing to determine the destination,
the message goes to the badhosts channel.
If the message is destined for another machine, such as when
the local machine is acting as a gateway between networks,
MMDF selects another network channel, such as UUCP.
The submit program puts the message in the
appropriate channel queue.
The deliver program
transfers the mail from each queue to the appropriate channel.
The message is delivered to the user.
Processing outgoing mail
How MMDF works
© 2003 Caldera International, Inc. All rights reserved.
SCO OpenServer Release 5.0.7 -- 11 February 2003