Outlook Certificate Error Exchange 2010
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Outlook Certificate Error Exchange 2010 Name Does Not Match
2010 Question 0 Sign in to vote Hi, I am receiving the below outlook 2010 certificate error exchange 2013 security alert when launching a domain joined Outlook 2010 client; The security certificate was issued by a company you have
Outlook Security Alert Certificate Keeps Popping Up
not chosen to trust This is a self-signed certificate on the CAS server role which is separate to the Hub and Mailbox. Unless something is completely screwed, Outlook 2007 against Exchange 2007 had outlook 2010 certificate warning no issues with domain joined machines and self-signed certificates. 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. Any help appreciated. Cheers Monday, January 04, 2010 11:33 AM Reply | Quote Answers 2 Sign in to vote Hi, Yes, when internal user try to use outlook to connect exchange Server, outlook will outlook 2010 certificate error when sending email try to find the e-mail address and exchange server name from AD. After that it will look for SCP and then find the correct the autodiscover server to connect, retrieve settings. So during the process of connecting to exchange server, it will have to use autodiscover to connect and retrieve user settings. So certificate regard to autodiscover will cause the issue. I’d like to share the process of how internal outlook user connect to exchange server. 1. Automatically retrieve e-mail address from Active Directory if domain joined machine. 2. Retrieve Exchange Server name if found and store for later. 3. Look for SCP objects or SCP pointer objects that correspond to user’s e-mail address, and find the correct Autodiscover server to connect to; then connect and retrieve settings. 4. If previous step fails, attempt DNS discovery of Autodiscover XML (allowing for 10 redirects). a. HTTPS POST: https://DOMAIN/autodiscover/autodiscover.xml b. HTTPS POST: https://autodiscover.DOMAIN/autodiscover/autodiscover.xml c. HTTP GET: http://autodiscover.DOMAIN/autodiscover/autodiscover.xml (only to follow redirects, not to get settings) d. DNS SRV lookup: _autodiscover._tcp.DOMAIN (only to follow the redirect the SRV record points to) 5. If previous step fails, attempt local XML discovery and use XML found on the local
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Outlook 2013 Certificate Error Internal Server Name
hiring developers or posting ads with us Server Fault Questions Tags Users Badges Unanswered Ask Question _ Server Fault is a question and answer site for system https://social.technet.microsoft.com/Forums/exchange/en-US/6d000de1-4549-4135-946a-4c5abeac4859/outlook-2010-certificate-alert-when-connecting-to-exchange-2010-server?forum=exchange2010 and network administrators. Join them; it only takes a minute: Sign up Here's how it works: Anybody can ask a question Anybody can answer The best answers are voted up and rise to the top Eliminate certificate warning when users access Outlook/Exchange 2010 on split domain setup up vote 2 down vote favorite http://serverfault.com/questions/341665/eliminate-certificate-warning-when-users-access-outlook-exchange-2010-on-split-d I have an internally-hosted Exchange 2010 Server with an internal domain, EXCHANGE0.COMPANY.COM. I have configured all users to access Outlook (even internally) using Outlook-over-HTTP. To do so I have set up a client access certificate for the externally-facing domain mail.company.com. The problem is that whenever users open Outlook they are promptly greeted by certificate warnings of the mismatch between mail.company.com and EXCHANGE0.COMPANY.COM. I would like to eliminate these warnings and I feel there is a way to do so either through DNS or through Exchange. I am just not sure what to do. AutoDiscover is configured using the SRV method if that matters at all. EDIT: Configuration on clients looks as follows Exchange Server: EXCHANGE0.COMPANY.COM Connect using Outlook Anywhere (HTTP): on fast and slow connections, connect to mail.company.com and only trust msstd:mail.company.com Name on certificate is mail.company.com, but Outlook was expecting EXCHANGE0.COMPANY.COM domain-name-system active-directory exchange exchange-2010 share|improve this question edited Dec 16 '11 at 16:36 asked Dec
Exclaimer 3,206 Followers - Follow 43 Mentions12 Products Neal (Exclaimer) Sales & Marketing Manager GROUP SPONSORED BY EXCLAIMER TECHNOLOGY IN THIS DISCUSSION EMC 397951 Followers Follow Microsoft Exchange Server 2010 Join the Community! Creating your account https://community.spiceworks.com/topic/278039-email-certificate-security-alert-everytime-opening-outlook-2010 only takes a few minutes. Join Now Hi All, This is a tricky one. I have been trying to find a resolution for a while. It just one of those things that get on your nerves as much as http://wordsideasandthings.blogspot.com/2012/11/outlook-certificate-warning-with.html it gets on your users nervers so was hoping Spiceworks Community can giving me a helping hand please? Every time we open Outlook 2010 (regardless of who the user is or which PC) we keep getting a Security certificate error Alert Certificate Pop up twice (please see attached, I have censored our server name for security purposes). I have tried installed the certificate but it keeps coming back every hour or so or every time we restart Outlook. I have also checked the certificate is valid and is covered for purposes of: -ensures the identity of a remote computer -proves your identity to a remote computer -2.16.840.1.114413.1.7.23.1 (Do not know what this is!) Exchange Setup: We have 2 Exchange servers. certificate error exchange Server A & Server B. Server A was initially where exchanged was installed (which was upgraded from Exchange 2003 to 2007 by my predecessor), there was an issue with accessing OWA on server A during the upgrade so he installed Exchange 2007 on Server B and OWA was working. All mailboxes are stored in Server B (this is starting to sound like an exam question now ha? :) Any ideas? Reply Subscribe RELATED TOPICS: Exchange 2010 and Outlook 2010 Security Alert on launch Outlook Security Alert "Certificate is invalid..." Security Alert for Outlook 2010 & 2013   1 2 Next ► 28 Replies Serrano OP gone Nov 28, 2012 at 12:42 UTC This happened to us when we upgraded our mail server. The name of our server changed, and we had to get a new certificate issued. There are also a few steps that needed to be done on the new server. Check this out: http://www.shudnow.net/2007/08/10/outlook-2007-certificate-error/ Hopefully this helps! It sure was frustrating when I dealt with it a few months ago. 1 Jalapeno OP Peter3168 Nov 28, 2012 at 12:46 UTC I think Keith might be right about that. Check this maybe: http://www.sslshopper.com/ssl-checker.html
0 Jalapeno OP Mohamed A Nov 28, 2012 at 1:16 UTC Hi, Keith - when you say you had to get a new certificate issuedAccess and similar services), some Outlook clients may suddenly start complaining: "The name of the security certificate is invalid or does not match the name of the site." Here's the relevant Microsoft article. If you have trouble understanding it on the first read, I'll paraphrase! The Problem Exchange '07 and '10 automatically generate a self-signed certificate with the fully qualified internal name of the mail server. Outlook 2007 (and possibly Outlook 2010) clients connect to Exchange using -- by default -- the server's internal name. When the name the client uses and the certificate match, no problem! There's also no problem for Outlook 2003 clients because they don't bother with the certificate. But what if you replace the Exchange certificate with one that references the external name of the server? 'mail.contoso.com' instead of 'mail-srv.contoso.local', for example? Well, you get the error above! Expensive Fix If the new certificate includes Subject Alternate Names, you could include the internal name as one of the alternates. This internal name will be externally viewable to anyone who likes to read certificate details, if you care about that. The Usual Fix... The other way to make the warning go away is to instruct internal Outlook clients to look for the mail server under its external name (e.g. 'mail.contoso.com') and make sure internal DNS resolves to the internal IP of the mail server. ...And Its Downside You'll need to run "split DNS." Create a forward lookup zone on the internal DNS server for the external domain name. LAN clients which try to reach anything that ends in '.contoso.com' will receive their answers from the internal DNS server. Be careful! If you forget to add, for example, 'www.contoso.com' to the internal version, LAN clients may lose access to the company website. Check Current Values To be on the safe side, make a record of the relevant Exchange settings before changing them. This process will also help familiarize you with what's going on in the next step. Open Exchange Management Shell. Type the following queries, then note the information on the lines specified: > get-clientaccessserver | fl Note the value for 'AutoDiscoverServiceInternalUri' > get-webservicesvirtualdirectory | fl Note the value for 'InternalURL' > get-oabvirtualdirectory | fl Note the value for 'InternalURL' (Exchange 2007 only) > get-umvirtualdirectory | fl Note the value for 'InternalURL' Hopefully, the values are all the same for these! Change To the Ext