Outlook Autodiscover Certificate Error Exchange 2007
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Outlook 2007 Certificate Warning Disable
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Availability Migration You are here: Home / Outlook 2007 clients display certificate mismatch error after mailbox migrationOutlook 2007 clients display certificate mismatch error after mailbox migration February 27, autodiscover certificate error exchange 2010 2009 by Paul Cunningham 8 Comments When an Outlook 2007 user has
Autodiscover Certificate Error Exchange 2013
their mailbox migrated from Exchange 2003 to Exchange 2007 they may start seeing a certificate mismatch error appear
Outlook 2013 Autodiscover Certificate Error
when launching Outlook. This problem will occur if the following conditions are true: the internal DNS namespace does not match the external DNS namespace (eg domain.local for internal and https://support.microsoft.com/en-us/kb/2783881 domain.com.au for external) a third party SSL certificate matching the external namespace has been applied to the IIS instance on the Client Access Server (eg cas.domain.com.au) The certificate mismatch occurs because the Autodiscover Service and/or Availability Service use the FQDN of the Exchange 2007 host in their URL (eg https://server.domain.local/AutoDiscover/AutoDiscover.xml) but the IIS instance has an SSL certificate that does http://exchangeserverpro.com/outlook-2007-clients-display-certificate-mismatch-error-after-mailbox-migration/ not match that name. To resolve this issue you can change the URL of the Autodiscover and Availablity services to match the name on the certificate, which you can do with the following shell commands. [PS] C:\>Set-ClientAccessServer -Identity cas.domain.local -AutoDiscoverServiceInternalUri https://cas.domain.com.au/Autodiscover/Autodiscover.xml [PS] C:\>Set-WebServicesVirtualDirectory -Identity "EWS (Default Web Site)" -InternalUrl https://cas.domain.com.au/EWS/Exchange.asmx -ExternalUrl https://cas.domain.com.au/EWS/Exchange.asmx As long as your internal clients are resolving the external name cas.domain.com.au directly to your Client Access Server this should resolve the certificate mismatch error. Uncategorized AutoDiscover, Availability Service, EMSm Outlook 2007, Exchange 2007About Paul CunninghamPaul is a Microsoft MVP for Office Servers and Services, specializing in Exchange Server and Office 365, and is the publisher of Exchange Server Pro. He lives in Brisbane, Australia, and works as a consultant, writer and trainer. Find Paul on Twitter, LinkedIn, or Facebook. Comments Steven Goh says June 29, 2010 at 6:10 pm This article works. I like this article as you gave details key in compare to the rest, even Microsoft didn't give this details. It helps me solved my exchange 2007 issue Reply Luc Ouel
Errors which applies to Outlook 2007, Outlook 2010, and Outlook 2013. You can see that post here. That blog post describes http://www.shudnow.net/2013/07/26/outlook-certificate-error-and-autodiscover-domain-com-not-working/ an incorrect certificate on Exchange itself. For example, you make a http://windowsitpro.com/security/troubleshooting-autodiscover-certificate-error connection to Exchange and your InternalURLs, ExternalURLs, and AutodiscoverServiceInternalURI FQDN is not defined on the certificate. Therefore, you must update the InternalURLs, ExternalURLs, and AutodiscoverServiceInternalURI to match the certificate FQDN. This specific issue is a bit different. This issue is that when certificate error you are trying to make a connection to Autodiscover via https://autodiscover.domain.com, the Outlook client does not successfully make a connection to it and you get a certificate error. The certificate you see pop up in Outlook during the error isn't even the certificate that is located on Exchange. The certificate error that pops autodiscover certificate error up shows you that it is finding the certificate on your company's public website. So the million dollar question? Why the error and why is it showing the company's public website's certificate. Well first, let's explore a little on the steps External Autodiscover goes through in order to find Exchange. Internal Autodiscover and the Service Connection Point The Autodiscover service is a mechanism that can do several things. Automatic Mailbox Creation Redirects Outlook 2007/2010/2013 clients to point to the correct server in which their mailbox is located Provides URLs to Web Services for Outlook 2007/2010/2013 When you first launch your Outlook client (Outlook 2007 or above required for Autodiscover access), it will search Active Directory for a Service Connection Point (SCP) record. Every time a CAS Server is installed, it will register this SCP record within Active Directory in the following location: CN=Autodiscover,CN=Protocols,CN=
WindowsWindows 10 Windows Server 2012 Windows Server 2008 Windows Server 2003 Windows 8 Windows 7 Windows Vista Windows XP Exchange ServerExchange Server 2013 Exchange Server 2010 Exchange Server 2007 Exchange Server 2003 Outlook Unified Communications/Lync SharePoint Virtualization Cloud Systems ManagementSystem Center PowerShell & Scripting Active Directory & Group Policy Mobile Networking Storage TrainingOnline Training IT/Dev Connections Webcasts VIP Library Digital Magazine Archives InfoCentersIT Innovators Mobile Computing Business Now Desktop VDI All About Converged Architecture Advertisement Home > Security > Troubleshooting an Autodiscover Certificate Error Where experts and professionals share insights and inspirations to grow business and build careers Troubleshooting an Autodiscover Certificate Error Apr 8, 2009 by Paul RobichauxFollow20 Followers1162 Articles84 Comments EMAIL Tweet Comments 1 Advertisement One of the best things about being a Microsoft MVP is being part of the MVP community. Many extremely smart, opinionated, and experienced people belong to that community, and they present each other with a lot of great opportunities to learn things. Recently I learned a good bit about Microsoft Office Outlook 2007 and Exchange Server 2007's Autodiscover service from following a conversation on an MVP mailing list that the Exchange Server product group maintains. The original problem, posed by Michael B. Smith, was a simple one: A test environment that worked fine with Outlook produced errors when tested with the Exchange Remote Connectivity Analyzer (ExRCA; I wrote about this tool back in January 2009). The error seemed straightforward on its face: ExRCA reported that the common name of the SSL certificate used for the connection didn't match the server name provided for mutual server authentication. Given how difficult it is to get Exchange certificates properly issued and installed, this error isn't uncommon, and most