Outlook+Exchange 2010 Certificate POP Up

Had Exchange 2010 Server installed and running 2 years
Was using POPCON to grab mail at GoDaddy and bring down to mailboxes (pls - no comments I didn't set it up).
Have users with Win 7 + Outlook 2010
Moved company to Office 365 and dumped the GoDaddy mail (feel free to comment I did set this up).
Works fine with one annoying issue

When a user opens outlook they get a pop-up referencing the autodiscover for the old godaddy server/account.  I have included the actual pop up as attachment.

I do realize that if they click Don't ask me again it goes away, but then it later comes back.  How do I get rid of it completely?
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

A documented quick fix for this is to point autodiscover dns to autodiscover.outlook.com

A similar question from the MS O365 community forum

The actual popup is not attached, that would really help :)

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today

From novice to tech pro — start learning today.

Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.