This is a fairly naive and open-ended question I'm afraid but I'm sure others here may have similar setups and thus have answers.
I run Postfix on a home server which is on all the time of course but, as it's connected via a 'domestic' broadband service it's not a 100% reliable connection. There are also times when I reconfigure things (e.g. upgrade the server) that cause downtimes. What sort of strategies are available for coping with the (rare) disconnections of a few hours that occasionally occur? I know that SMTP delivery is fairly robust and, as far as I know, the backing off and retrying seems to work pretty well but I'd like, if I can, to do even better. I have access to the zone files for my system's domain so I can add lower priority MX records but I'm not really sure how that helps, does anyone go down this route with a home system? Any ideas or comments would be welcome, even "don't bother the SMTP back-off works well enough". -- Chris Green