Open up the boot script, you'll see:
Code:
sendmail_start() {
if [ -x /usr/sbin/sendmail ]; then
echo "Starting sendmail MTA daemon: /usr/sbin/sendmail -L sm-mta -bd -q25m"
/usr/sbin/sendmail -L sm-mta -bd -q25m
echo "Starting sendmail MSP queue runner: /usr/sbin/sendmail -L sm-msp-queue -Ac -q25m"
/usr/sbin/sendmail -L sm-msp-queue -Ac -q25m
fi
}
Change it to this:
Code:
sendmail_start() {
if [ -x /usr/sbin/sendmail ]; then
echo "Starting sendmail MTA daemon: /usr/sbin/sendmail -L sm-mta -bd -q25m"
/usr/sbin/sendmail -L sm-mta -bd -q25m -O DaemonPortOptions=Port=26
echo "Starting sendmail MSP queue runner: /usr/sbin/sendmail -L sm-msp-queue -Ac -q25m"
/usr/sbin/sendmail -L sm-msp-queue -Ac -q25m
fi
}
Simple as that. Restart it...
/etc/rc.d/rc.sendmail restart
From now on, it will use port 26.