Outlook 2007 users getting Security Alert, the name on the security certificate is invalid.

I receive the following error when outlook 2007 users connect to my exchange server. I have a valid certificate from network solutions, but it is for my external domain name. exchange.externaldomain.com . I dont have the domain hrinm.com, it's just our internal domain name. Outlook 2003 users dont get this message. Any ideas or suggestions?
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mrichlineAsked:
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pcandlerCommented:
The problem is the certificate is setup for the external access not internal.

See Microsoft's knowledge base article 940726 for a possible solution

http://support.microsoft.com/kb/940726
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