Exchange 2013 Change Domain Name Questions

I currently have 1 Exchange 2013 server.  I have a total of 15 domains that I accept mail for.  The default domain was ABC.COM.

I have recently changed the default domain to XYZ.COM, but the Autodiscover DNS configurations have not been changed yet.

In addition, I have not changed the SSL certificate either.....

Here are my questions:

1.  How do I switch the SSL certificate in Exchange?  Do I need to generate a new CSR from Exchange and send to GoDaddy, or can I just rekey the existing one?
2. Once I receive the changed certificate how do I install it?

3.  Which URLs do I need to change in Exchange once I install the certificate for Internal and External Connections so the autodiscover, web access, etc works with the new domain name and cert.?

*** Also, any other things I am missing??
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.

Miguel Angel Perez MuñozCommented:
1- Depends of your provider. In fact changing names requires new certificate, some will get new certificate with names you want to change, some others will require you paid for new certificate. The way to go, can be using CSR or gives your requirements to Godaddy to create your certificate. Then, import on Exchange.

2- From ECP, import and assing to WWW:

3- This must me rethink before ask for a new certificate. Usually: autodiscover, webmail (or whatever you are using to using webmail) and mail (if you are using other name different to publish smtp server rather than webmail).

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
Jason CrawfordExchange / Office 365 Premier Field EngineerCommented:
If your only concern is Autodiscover just use SRV records.  Login to the DNS host for and configure this:

Type: SRV
Domain: @
Protocol: TCP
Service: autodiscover
Weight: 10
Port: 443
TTL: 1 hour

This assumes the URL for the old domain...substitute for whatever is actually used if necessary.  I've setup multi-tenant Exchange many times, and this method prevents you from having to include each tenant domain in your UCC cert.
Kash2nd Line EngineerCommented:
or have a cname record for to point to
Problems using Powershell and Active Directory?

Managing Active Directory does not always have to be complicated.  If you are spending more time trying instead of doing, then it's time to look at something else. For nearly 20 years, AD admins around the world have used one tool for day-to-day AD management: Hyena. Discover why

Jason CrawfordExchange / Office 365 Premier Field EngineerCommented:
That will cause Outlook to pop up a cert warning for a name mismatch.  The only way to bypass this without adding domains to the UCC cert is to either A) use an SRV record or B) create another vDir in IIS.  Option A is by far the easier of the two.
Kash2nd Line EngineerCommented:
shit, totally forgot about that. you are right :)
Jason CrawfordExchange / Office 365 Premier Field EngineerCommented:
Eh it happens.  I just happened to be working on a multi-tenant Exchange migration so it's fresh in  my head :)
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.