troubleshooting Question

Exchange 2010 Certificates with non-split DNS

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jpletcher1Flag for United States of America asked on
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I have Exchange 2010 setup and running alongside our Exchange 2003 environment.  Our external domain name I will call exdomain.com and our internal domain indomain.com.

I have our public cert moved onto our Exchange 2010 server, mail.exdomain.com, and it works just fine.  Now Outlook complains that the cert doesn't match what it is looking for.  I understand this is because Outlook is looking for the NETBIOS name and the cert with the NETBIOS name that the install created.  From what I've read there are two ways around this.

1.  Add our NETBIOS name to our public cert
2.  Change the NETBIOS names for autodiscover, webservices and OAB via EMS to the full public name, mail.exdomain.com.

I guess either of these would work.  But I was wondering if I should do one vs the other.  We have a very basic setup with all roles on one server and no ISA server in the mix.
ASKER CERTIFIED SOLUTION
Rick Fee
Messaging Engineer - Disaster Recovery Engineer

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