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SBS 2008 to Exchange 2013 conversion SSL issue

I'm finishing up a migration from SBS 2008 to Exchange 2013.  There are just a handful of email boxes so I want to just migrate all the email boxes and then have the users use the new urls etc for getting to OWA and setting up activesync on mobile devices.  In other words I want to eliminate the SBS 2008 box ASAP.

Right now activesync is working as well as OWA on the new 2013 server.  I have migrated a few mailboxes and the only issue is that when Outlook is launched for those users I get a warning that the SSL cert server name does not match the certificate.  I can bypass the error and outlook connects and Outlook functions normally.   When I view the cert from that point I see it still points to the remote.domain.com old SBS 2008 cert and not the mail.domain.com that I installed on the 13 box.

Not sure why the old SSL cert is still in play.  I looked at the settings for the outlook profile and everything looks to be pointing to the new box.  The SSL cert on the 2013 box looks to be in good order and it contains remote.domain.com, mail.domain.com and autodiscover.domain.com.  

Any advice appreciated.

ExchangeSSL / HTTPSOutlook

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8/22/2022 - Mon