Exchange 2010 and Outlook 2010 - The name on the security certificate is invalid

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When connecting to our Exchange 2010 server I get the following error in Outlook:

"The name on the security certificate is invalid or does not match the name of the site"

I have issued a certificate using our internal CA for the correct address and changed the internal URL's so they point to the FQDN of our Exchange 2010 server.

However I still get the error message. Is there somethign I am missing?


Rajith Enchiparambil

Getting things to work with an internal certificate will be a nightmare, especially with ActiveSync devices & OA connections from non-domain joined machines. OWA will error as well.

Why don't you use a SAN cert? Try Digicert, cheap & best

If Outlook is 2007 or 2010, it uses Autodiscover to get different urls & all has to be set correctly to get rid of the errors.

Run "Test email configuration" using Outlook to see the urls used and change if necessary.

Rajith Enchiparambil | |

Tim Bauer

same issue here... in my opinion it's a step in the wrong way from microsoft to cut out non-domain members with this problems... ever tried to use the out-of-office messages... no way! only available trough OWA... non-domain clients are not welcome... :/Thanks, regards, tim
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