Thanks all for the response, there are many ways to solve this. It took
me a while to figure out which would be the best and most simple. While
I was doing that I cam across "
router/150_exim4-config_hubbed_hosts". I then created
"/etc/exim4/hubbed_hosts" with an entry like this: "mydomain.org:
222.333.444.555" where the IP address is the external IP address of the
smtp server. Sending a test email and checking the logs it appears the
emails were sent correctly. I also received a confirmation email
I don't know if this is the proper use of hubbed_hosts, but it required
the least configuration, just creating /etc/exim4/hubbed_hosts with the
right entry was enough. The only downside I can see that it doesn't take
advantage of MX records, so if smtp1 is down it can't try smtp2 etc. But
I can live with that... until it goes down. ;-)
Mike Cardwell wrote: > Hmmm. That's annoying. If your box has iptables, you could do
> something like this:
>
> iptables -t nat -A OUTPUT -p tcp -d smtp1.mydomain.org --dport 25 -j DNAT --to-destination 222.333.444.555:25
I tried this, but exim4 was still unable to find the smtp server.
