Outlook 2003 Certificate Error Exchange 2010
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Outlook 2013 The Name On The Security Certificate Is Invalid
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it works: Anybody can ask a question Anybody can answer The best answers are voted up and rise to the top Exchange 2010 - Certificate error on internal Outlook 2013 connections up vote 0 down vote favorite I have an https://support.microsoft.com/en-us/kb/276597 Exchange 2010 and Outlook 2003. The exchange server has a wildcard SSL certificate installed *.domain.com, (for use with autodiscover.domain.com and mail.domain.com). The local fqdn of the Exchange server is exch.domain.local. With this configuration there is no problem. Now I started upgrading all Outlook 2003 to Outlook 2013, and I start to get consistently a certificate error in Outlook : The Name on the security certificate is invalid or does not match the name of the site I understand why I http://serverfault.com/questions/618309/exchange-2010-certificate-error-on-internal-outlook-2013-connections get that error: Outlook 2013 is connecting to exch.domain.local while the certificate is for *.domain.com. I was ready to buy a SAN (Subject Alternate Names) Certificate, that contains the three domains exch.domain.local, mail.domain.com, autodiscover.domain.com. But there is a hindrance: the certificate provider (in my case Godaddy) requires that the domain is validated as being our property. Now it is not possible for an internal domain that is not accessible from the internet. So this turns out not to be an option. Create self-signed SAN certificate with an Enterprise CA is an other option that is barely viable: There would be certificate error with every access to webmail, and I had to install the certificate on all Outlook clients. What is a recommended viable solution ? Is it possible to disable certificate checking in Outlook ? Or how could I change the Exchange server configuration so that the public domain name is used for all connections ? How to change the main FQDN of the Exchange server, as suggested in the answer, without the need of reinstalling the server ? Or is there another solution I'm not thinking of ? Any advice is welcome. exchange-2010 ssl-certificate outlook-2013 share|improve this question edited Aug 20 '14 at 7:44 asked Aug 6 '14 at 6:56 Lorenz Meyer 2982420 Why are you using .local at all? –Joe Sniderman Aug 6 '14 at 8:47 @JoeSniderman Because our AD domain
Products Neal (Exclaimer) Sales & Marketing Manager GROUP SPONSORED BY EXCLAIMER TECHNOLOGY IN THIS DISCUSSION SSL Certificate Verisign https://community.spiceworks.com/topic/267095-outlook-2010-certificate-error Join the Community! Creating your account only takes a few minutes. http://exchangeserverpro.com/exchange-2010-ssl-certificates/ Join Now I am receiving an invalid certificate error message when my users use Outlook 2010. It only happen when they first start Outlook. If they click Ok Outlook works, but it's annoying getting this error. I have some users on Exchange 2003 and some on Exchange 2010. I internet security believe the error on the certificate relates to the self-signed certificate that our Exchange 2010 CAS server created. Anyone else have this problem? Reply Subscribe RELATED TOPICS: Exchange and Outlook 2010 Certificate Error Outlook 2010 Certificate error for only 1 user Outlook 2010 certificate error for local server 15 Replies Datil OP Mark McKinlay Oct 12, 2012 internet security warning at 2:33 UTC Is your certificate still in date? 0 Chipotle OP David (AppRiver) Oct 12, 2012 at 2:38 UTC Brand Representative for AppRiver What is the error? 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 and the cert conflicts with outlook as it tries to communicate with the mail server Since you didn't give any examples, im not sure if this pertains to you or not 0 Mace OP Jay6111 Oct 12, 2012 at 2:40 UTC I never advise installing self signed certificates on Exchange, it's just too much of a hassle and for the price of an SSL cert through Go-Daddy it's easier and cheap just to do it the right way. With that said, a lot of this depends on how you setup your self signed cert. Great instructional video here, http://petenetlive.com/KB/Article/0000454.htm
-Jay 1 Tabasco OP @R3b00t Oct 12, 2012 at 2:41 UTC Not long agAvailability Migration You are here: Home / Articles / Exchange Server 2010 SSL CertificatesExchange Server 2010 SSL Certificates December 18, 2010 by Paul Cunningham 39 Comments If it is your first time working with Exchange Server 2010 then you will quickly realise that you need to learn about the relationship between Exchange 2010 and SSL certificates. Looking for information about Exchange 2013 SSL certificates instead? Click here to find out more. SSL Requirements in Exchange Server 2010 Prior to Exchange Server 2007 an Exchange server could be deployed and by default would not require SSL for any of its communications. The wise move when deploying Exchange Server 2003 (for example) was to install an SSL certificate for IIS and use SSL for external access (eg Outlook Web Access and ActiveSync). However this was not mandatory and it certainly isn't unusual to encounter legacy Exchange environments that allow external access over insecure HTTP connections. For Exchange Server 2007, and then again with Exchange Server 2010, Microsoft changed the default behaviour so that SSL was required for many services, even when they are only used internally. So a newly installed Exchange Server 2010 server that hosted the Client Access server role would have SSL enforced for services such as: Outlook Web App ActiveSync Exchange Web Services Outlook Anywhere The administrator could disable that SSL requirement, but again the wise move is to protect Exchange Server 2010 communications with SSL encryption rather than allow them over insecure HTTP connections. Because the SSL requirement is on by default the Exchange 2007 and Exchange 2010 servers are installed with a self-signed SSL certificate. This self-signed certificate does the job of securing any SSL connections, however because it is self-signed no connecting clients or devices will trust it, so it is unsuitable for long term use. The administrator needs to install a new SSL certificate for Exchange Server 2010. If you're using an internal DNS namespace that you don't own or is not valid (eg, .local) you may also need to read How to Deal with SSL Requirements for Exchange when