http://home.earthlink.net/~dhay/mklinux/sendmail-ppp.html

To: MkLinux Setup list <mklinux-setup@public.lists.apple.com>
Subject: Re: Sendmail (solution)
From: igor@pobox.com
Date: Sat, 9 May 1998 18:59:37 -0400
Sender: owner-mklinux-setup@public.lists.apple.com

My configuration with sendmail involves a couple of nifty tricks:

First, in /etc/rc.d/init.d/sendmail:

case "$1" in
  start)
        pppon=`ifconfig ppp0 2> /dev/null | grep UP`
        if [ -z "$pppon" ]; then
                echo -n "Starting sendmail [queue only mode]: "
                daemon /usr/sbin/sendmail -bd -oO HoldExpensive=True
        else
                echo -n "Starting sendmail [remote send mode]: "
                daemon /usr/sbin/sendmail -bd
                # Send any queued mail.  The -v keeps it from segfaulting (bug!)
                /usr/sbin/sendmail -q -v > /dev/null
        fi
        echo
        touch /var/lock/subsys/sendmail
        ;;
  stop)
<rest is the same>

Thus, if I'm not online, sendmail simply queues them all up.  When I *do* go
online, it configures for instant sending, and sends any queued mail.  (BTW,
does sendmail -q without the -v segfault for anyone else?)

Anyhow, in /etc/ppp/ip-up.local, and ip-down.local, I include the line:

/etc/rc.d/init.d/sendmail restart

This has worked quite well for me.

-igor