How to avoid Multiple Domain Names on a SAN Certificate?

I realize in a middle of a migration from Exchange 2003 to Exchange 2010 that I will have to create many accepted domains in Exchange 2010. Is there any way I can avoid listing these additional domains on the SAN certificate.

Even if I add them to the Cert we regularly add additional domains and I just don't want to be making changes constantly  with these certificate  once it is installed and it works.

Your recommendations will be appreciated.

Who is Participating?

[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

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.

Will SzymkowskiSenior Solution ArchitectCommented:
Is there any way I can avoid listing these additional domains on the SAN certificate.
You do not need to add all of your Accepted domains to a UCC/SAN cert. You can have 1 external SMTP address that is used for connecting to your exchange environment i.e. and are the only DNS SAN Names that are required. This is the preferred method.

So if you have users in your Exchange environment using as there SMTP domain this will not matter. They just connect to there mailbox using and they will still be able to send/receive email as


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
TCPIPNetAuthor Commented:
Thanks Will for your reply.
Does it matter if  I am using split DNS?

Apart from those domains being added as accepted domains, is there any other configuration that should be done regarding the client Access URL's?

Thanks once again.
Will SzymkowskiSenior Solution ArchitectCommented:
If you are using split dns what you will want to do is the following...
- on your internal DNS create a new Zone for
- then create an A (host) record for
- then you can set all of your virtual directories to , oab etc.

So whatever domain you are using externally you just need to create a zone internally and then create a A record for mail.

That is all that is required.

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.