Thomas Anderson wrote: > The primary problem is that I have a lot of important systems (email, > cloud), and other less important (web host). Simple dist-upgrades have > always broken my mail server, that I was not immediately able to recover > (fortunately, I had made a backup before). I have tried a couple of times to > upgrade, but all attempts have failed. Thus, why I am still stick on 9. I > don't like it, and still want to upgrade.
All legitimate mail servers will retry delivery. If you're concerned about timeliness, spend $10 and a day on setting up a cloud VM as a secondary MX. That also gives you experience in setting up your mail server software. -dsr-
