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Adding a second SSL certificate for new domain in Exchange 2003

Posted on 2012-09-09
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I have a customer who wants a second domain for email setup.  They have 2 separate SSL certificates for the email domain - domain1.com and have bought another for domain2.com.

They should have bought a SAN certificate but didn't. Is this an easy task to apply two SSL certificates for OWA? I setup a temp IIS website to generate the CSR for domain2.com.

I'm not worried about the recipient policies. But I've never applied two certificates for Exchange before.  Can someone point me in the right direction?  I'm not sure whether you can have both IIS website operating side-by-side and how does navigating to the external OWA website work?

They are migrating to the new domain later this year.
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Question by:gambit120
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by:Simon Butler (Sembee)
ID: 38383058
SSL certificates are bound to an IP address and port. You cannot share either.
Therefore you must have two internal and two external IP addresses.
Yet that only applies to OWA, autodiscover internally will only use the default host name, and Outlook Anywhere can only use the default web site.

Personally I would speak to the SSL provider and look to drop the certificates and swap them for a Unified Communications certificate so you can put both names on to the same certificate.

Simon.
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by:gambit120
ID: 38384962
The reason a SAN/UCC certificate was not chosen was because you can only have one master domain then sub-domains under it.  Currently they have companyname.blah.blah.com.  A SAN certificate will only allow mail.companyname.blah.blah.com or webmail.companyname.blah.blah.com not companyname.blah.blah.com as well as companyname2.blah.blah.com


Their plan is to migrate to a new company name while keeping the old one for a while as well for 6-12months.  The new company name companyname2.blah.blah.com is what all users will be migrating too eventually.  Is there a way in DNS to perform some sort of redirection? Not sure...
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Simon Butler (Sembee) earned 2000 total points
ID: 38392228
That is incorrect. Whoever told you that gave you wrong information. It sounds like you may be confusing the UC certificate with a wildcard certificate.
A UC/SAN certificate allows any combination of domains to be listed - I personally have sites with .com, .co.uk and .net names in the certificate.

Therefore you can get a suitable certificate easily that will cover the names that you require, and my advice from above still applies.

Simon.
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by:gambit120
ID: 38593062
I UCC/SAN was bought for the customer.
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