This was never an issue with Outlook connecting to Exchange 2007 utilising self signed certificate. I have a star alias ssl certificate *.domain.com I want to use and already using for webmail and OMA. You need a wildcard certificate for your internal domain. Worked without issue, but it's a pain to have to remember to keep both Zones (real and internal) up-to-date if there's no trust/automated method of doing so. Source
Germán Flores Fernández 28,906 views 43:13 The Best L2TP Windows VPN setup for 2012 R2- Client, Server and FW instructions. - Duration: 19:29. Cancel OK Message Template images by mammuth. Retrieve Exchange Server name if found and store for later. 3. https://support.microsoft.com/en-us/kb/2006728
Change To the External Name Assuming... I would like to eliminate these warnings and I feel there is a way to do so either through DNS or through Exchange. Internal names are now banned (or very shortly will be). Exchange 2010 Certificate Error When Opening Outlook Do you have a screenshot? I have seen this happen sometimes when outlook tries to communicate to autodiscover.YOURDOMAINNAME But the web developer has a wildcard cert with *.YOURDOMAINNAME
I solved the problem by setting up split DNS: I created a Zone for example.com in Active Directory DNS (and added all the appropriate records and sub-domains such as A, CNAMEs, The Security Certificate Was Issued By A Company You Have Not Chosen To Trust I believe the error on the certificate relates to the self-signed certificate that our Exchange 2010 CAS server created. However if I access the server (still with IE) using "localhost" or the "netbios.fqdn" I get the certificate error - so I think it might be IIS making the trouble here...?? Monday, August 27, 2012 5:44 PM Reply | Quote 0 Sign in to vote Sorry, McCue, but going from 99% secure to 99.1% secure is not much use.
If you browse to the CAS server (https://serverFQDN) do you get an error message? http://trinitylabsupply.com/certificate-error/cert-error-for-some-in-outlook-2010.html No one hacked email because of internal names in ssl certs. that was a management decision. 0 Anaheim OP DavidH4477 Jul 22, 2011 at 11:43 UTC Solved! Daniel, marking yours best answer because it was closest. http://support.microsoft.com/kb/940726 The SRV wouldn't it be great if they gave us a choice, like a group policy or registry hack to tell outlook 2010to "ignore certificate errors?" since, you know.this was the default behavior Outlook 2010 Certificate Warning
I need clarification that this either still holds true for Exchange 2010, or whether this has changed due to mapi now being closely tied to the CAS role. David Papkin 334 views 22:18 Restoring Individual Mailbox Items in Exchange Server 2010 - Duration: 20:46. Only on Outlook 2010, my Outlook 2007 clients connect without a problem. have a peek here Just installthe CA from the Windows Server Setup.
Sign in Transcript Statistics 8,783 views 9 Like this video? Outlook Security Certificate Cannot Be Verified Watch QueueQueueWatch QueueQueue Remove allDisconnect The next video is startingstop Loading... If previous step is not applicable, attempt Common Settings Discover, as described in the next section.
When I surf to https://serverFQDN, I do receive a certificate error on all machines, not just the Outlook 2010 machine. Profile cancel Sign in with Twitter Sign in with Facebook or CommentName EmailNot published Website 10 Replies 10 Comments 0 Tweets 0 Facebook 0 Pingbacks Last reply was March 7, 2015 The following KB article explains the same issuehttp://support.microsoft.com/default.aspx/kb/2006728 but this is a native Exchange 2010 environment with no previous versions of CAS roles. Outlook Certificate Warning If you forget to add, for example, 'www.contoso.com' to the internal version, LAN clients may lose access to the company website.
Add to Want to watch this again later? Creating your account only takes a few minutes. To do this, type the following command, and then press Enter: Set-WebServicesVirtualDirectory -Identity "CAS_Server_Name\EWS (Default Web Site)" -InternalUrl https://mail.contoso.com/ews/exchange.asmxChange the InternalUrl attribute for Web-based Offline Address Book distribution. Check This Out Any suggestions much appreciated Lars PS.
Be careful! Exchange Server Pro 14,966 views 15:47 Planning and Configuring Messaging Client Connectivity in Exchange 2013 by David Mark Papkin - Duration: 22:18. Any ideas? Check all the certs installed on the server and verify info is correct and there arent any self signed certs.