Advise on hosted switchover to Exchange 2003 - mx records
Posted on 2005-04-20
I have a domain that has hosted email thru a outside party. Currently our mx record points to this provider and we only have one. Recently I setup a new exchange server and I am looking to host email for our network. I want to minimize disruption and prevent any mail from getting lost.
My thoughts are to add a mx record with a higher priority than the one that already exists thus making my internal server the first server to be contacted to deliver mail and if that was to fail then go to the 2nd entry.
So, I was going to disable my smtp and pop services on the exchange server and make my server the primary mx record on network solutions. This will of course fail until I am ready to switch over and mail will continue to be delivered to the hosted solution till I am ready. When I am I can simply start those services and nothing will skip a beat correct?
Is this the best way?
Simply changing the mx records ip address can take 24hrs or more to change over right?