Timothy Alberts wrote:
Yes, it is 'msiscales.com'. The second MX record is supposed to be a backup when our server is down.
The suggestion that you use a virtusertable on your backup MX is a good one. I do something similar at my site, where our mail filters run on top of sendmail, and are separate from the actual spooling servers.
Another option that I haven't seen mentioned is this: Don't run a backup MX. Pretty much every sender will retry delivery on a reasonable schedule if your host is down. I can't think of a single reason to run a backup MX at all. They usually just create administrative overhead because of exactly the problem you're having now.
