We have a single site for email and we are changing ISP's. My plan is to register the new IP for the mail server as an MX record with a lower preference than our current mail MX record.
I'm thinking that when we change - incomming mail will try to hit the old IP fail and then resort to the new IP. After a day or so I will remove the old MX record.
Is this the right thing to do or is there a better way?
Thanks in advance!