Change of ISP - need to deploy new IP address or DNS name to Active Sync phones

Greetings! We are changing ISP's tomorrow and we JUST finished deploying a bunch of new Galaxy S4's. Before, we were using Blackberrys and the thought never occurred to set up a DNS name for ActiveSync, we were just using the straight IP address. So
it just hit me that, when we switch over tomorrow evening, all the ActiveSync devices will cease to connect. NOT a good thing! Is there a way to push out a DNS name (to replace the IP address), to all the Active Sync clients via a policy update, script or
other mechanism? Otherwise we will have to contact each user and get them to manually update their accounts by entering the new DNS name. If anyone knows a method by which we can do this, please advise and thanks in advance!
Mike
Mike Vain

Hello,
I agree with Ed's suggestion. After you change ISP, please change your DNS entries to the new IP address.
You can also change DNS A record for autodiscover to the new IP address.
The activesync will use autodiscover service to update profile.
Cara Chen
TechNet Community Support

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