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Multiple SSL certificates Exchange 2007

Posted on 2010-11-17
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Last Modified: 2012-05-10
we are migrating our email to a new domain

oldcompany.com
newcompany-tt.net

I am able to send and recieve emails on the new domain, howerver we purchased a new UCC SSL Cert from godaddy and i need to it installed for the new domain without breaking the old domain (also have a certificate for it as well that we currently use).

Do i need to create a new Outbound connector that has the newcompany-tt.net domain? (i didnt do that yet, so everything is sending out the default connect)

Is this somthing that can be done?

Any help would be appreciated.
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Question by:lhartzell
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Expert Comment

by:dexIT
ID: 34158486
If you have an SSL certificate with assigned services for the old certificate then all you need to do is add the new domain in the accepted domain list (which obviously you did) and add the new certificate to Exchange and assign it services. Are both domains on the same mailbox database? Are both domains listed on the UCC? If you plan on removing the old one then you need to revoke the certificate before explicitly using the new one. At some point, you will need to remove MX records from your old domain and add it to your new one (I would add it first then remove the old domain MX records).
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Author Comment

by:lhartzell
ID: 34159183
Both domains are on the same mailbox database.
No only newdomain-tt.net is on the new UCC, dont have room to add the ones for the old domain, which is why i was hopeing to keep the old domain cert intact until i am finished (roughly 300+ Mailboxes)
I have an mx record for both the old and new domains. Once i am done moving everyone over to the new domain and everyone is familiar with it, then i will revoke the old cert. but for now i need to keep it functioning as normal and do this transparently to the users until I have it working.
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dexIT earned 500 total points
ID: 34172854
Ok, so set an email address policy and set your mailbox users with newdomain-tt.net aliases. You'll need to add the UCC and once you've completely re-configured your client access from olddomain.com to newdomain-tt.net just add the services to the new UCC. You will need to change your external client access URLs and you shouldn't need to change the outbound connector (if you're using your exchange server name/netbios) but if you're using the external URL then yes, you need to change that. Upon your transition, you could have them use OWA while you verify Outlook client settings on the users to detect irregularities with the changes. There shouldn't be much to change since you're using the same server and EDB
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