#!/bin/sh

if [ ! -f /etc/mailer.conf.pre-exim ]; then
    echo "can't find /etc/mailer.conf.pre-exim, exim not disabled"
    exit 1
fi

if [ -f /etc/mailer.conf ]; then
    mv -f /etc/mailer.conf /etc/mailer.conf.exim
    mv -f /etc/mailer.conf.pre-exim /etc/mailer.conf
    echo "exim mailer.conf disabled, old mailer.conf enabled"
else
    echo "can't find /etc/mailer.conf, exim not disabled"
fi