Another 'The name of the security certificate is invalid or does not match the name of the site' problem

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I have read over the KB article for 2007 and 2010 and set the specified InternalURL's and URI of the servers and sites.

However I still get that warning, so, I decided to use "Set-OutlookProvider" and set EXCH to the self signed cert that points to my local AD site witht he proper dns entries...

Still didn't help.

Not quite sure how to continue here.

Any help would be appreciated


Whatever you set for the external and internal URLs, those names must be in the certificate. Are you trying to use the self-signed cert or have you purchased one from a public CA? You are always going to get this error if trying to use the self-signed cert. You need to get a public cert and include any names in it (a UC or SAN capable cert) that you are publishing in the URLs. At a minimum, you need your OWA address and

Tamer Sherif Mahmoud

what is the certificate details you have and the FQDN of the servers?

Tamer Sherif Mahmoud


The internal has a self signed and the external has a wildcard for all my other subdomains.

When I view the certificate on this error, it shows my wildcard certificate and not the local internal self signed.

EDIT: The Wildcard is signed by a trusted root, and all external clients do not have this error of course.

It's a mismatch because it's trying to use my wildcard .com cert for the internal.

The Local AutoDiscover site has a separate site and IP. The A-Records point to that ip on the internal DNS.
RunspaceId : 5dffeff2-9e5e-47cf-bd25-17f4d2032940
Fqdn : TZPLCHVTPA-EX1.mydomain.local
OutlookAnywhereEnabled : True
AutoDiscoverServiceCN : TZPLCHVTPA-EX1
AutoDiscoverServiceClassName : ms-Exchange-AutoDiscover-Service
AutoDiscoverServiceInternalUri : https://tzplchvtpa-ex1.mydomain.local/Autodiscover/Autodiscover.xml
AutoDiscoverServiceGuid : 77378f46-2c66-4aa9-a6a6-3e7a48b19596
AutoDiscoverSiteScope : {TZPDCTPA-2K8R2}
AlternateServiceAccountConfiguration :
IsValid : True
ExchangeVersion : 0.1 (8.0.535.0)
DistinguishedName : CN=TZPLCHVTPA-EX1,CN=Servers,CN=Exchange Administrative Group (FYDIBOHF23SPDLT),
CN=Administrative Groups,CN=mydomain,CN=Microsoft Exchange,CN=Services,CN=Conf
Guid : 9cf511ce-7f9a-4c2c-8fb2-9bc8f89c6e7e
ObjectCategory : mydomain.local/Configuration/Schema/ms-Exch-Exchange-Server
ObjectClass : {top, server, msExchExchangeServer}
WhenChanged : 8/8/2010 4:27:31 AM
WhenCreated : 7/1/2010 10:00:49 PM
WhenChangedUTC : 8/8/2010 8:27:31 AM
WhenCreatedUTC : 7/2/2010 2:00:49 AM
OrganizationId :
OriginatingServer : TZPLCHVTPA-DC2.mydomain.local


So you can only bind one certificate to your CAS. If you have a wildcard and the domain namespace does not match your internal domain namespace then you will need to modify all the internal URLs to use the external namespace. You can use split DNS to handle this. Create a DNS zone on your internal DNS servers for your external namespace (if you don't have one already). Create A records that resolve to the internal IP of your CAS services.
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