On 4/6/20 1:02 PM, Grant Taylor wrote: > On 4/6/20 10:43 AM, Michael Orlitzky wrote: >> Well, I can't refute an anecdote without more information, but if >> you're worried about this you can create the same MX record twice so >> that the "backup" is the primary. > > That's not going to work as well as you had hoped. > > I've run into many MTAs that check things and realize that the hosts in > multiple MX records resolve to the same IP and treat them as one. >
Why don't you say which MTA it is that both (a) combines MX records with different priorities, and (b) doesn't retry messages to the primary MX?
