Setting the delivery mode
There are a number of delivery modes for
sendmail set by the
DeliveryMode (d) configuration option.
specify how quickly mail is delivered.
Legal modes are:
There are tradeoffs.
Mode ``i'' passes the maximum amount of information to the sender,
but it is hardly ever necessary.
Mode ``q'' puts the minimum load on your machine,
but means that delivery may be delayed for up to the queue interval.
Mode ``b'' delivers promptly and is probably a good compromise.
However, this mode can cause large numbers of processes
if you have a mailer that takes a long time to deliver a message.
Mode "d" is identical to mode "q" except that it also prevents all
the early map lookups from working;
it is intended for ``dial on demand'' sites where DNS lookups
might cost real money. Some simple error messages
(such as host unknown during the SMTP protocol)
will be delayed using this mode.
Mode "b" is the usual default.
deliver interactively (synchronously)
deliver in background (asynchronously)
queue only (do not deliver)
defer delivery attempts (do not deliver)
If you run in mode ``q,'' ``d,'' or ``b,''
will not expand aliases and follow .forward files
upon initial receipt of the mail.
This speeds up the response to RCPT commands.
Mode ``i'' cannot be used by the SMTP server.
Setting the mail load limit
© 2003 Caldera International, Inc. All rights reserved.
SCO OpenServer Release 5.0.7 -- 11 February 2003