Not too clear from the subject and probably a lame idea.
Situation: We have a system (MX1) that is having hardware problems. Currently they are irritations but we want to rebuild the system before it really crashes. There are actually two systems so there is back up (MX2) in case there is a failure.
We created another system (MX3) and added it to the DNS records with a priority the same as MX2 and gave MX1 a really low priority hoping to slowly reduce traffic to it.
It is going too slowly! So I was thinking instead of just shutting it down it would be nice to the tell the connecting systems to go to the other system then refuse to accept the mail. After a day or so shout it down.
Is this possible? If so what is it called? (I'm completely at loss here for terms to search with.)
Thanks, Rod --
