Outlook 2013 Certificate Error Security Alert occuring when I try to send an email in Outlook 2013


We are running Microsoft Exchange 2010 Server and just began installing Office 2013 64 bit on several new computers. Office installs correctly, however when I open Outlook and try to send an email I get the following msg.


Information you exchange with this site cannot be viewed or changed by others. However there is a problem with the site's security certificate.

(check) The security certificate is from a trusted certifying authority

(check) The security certificate date is valid.

X The name on the security certificate is invalid or does not match the name on the site.

Do You want to Proceed?

I have tried clicking on Yes , but the error eventually returns.

  I have also clicked on View Certificate and tried installing the certificate.   Domain name is correct and the certificate timestamp has not expired.  It says that the certificate imported was successful---but I still get the same error after closing and reopening Outlook.

It seems to only be these Office 2013 machines that are having this problem.

Any help on solving this  certificate problem would be greatly appreciated
I get the feeling it has something to do with the Exchange server.

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Have you checked your message security to see if you're trying to digitally sign or encrypt the message by default within Outlook 2013?
Shreedhar EtteCommented:

As per the error certificate installed on the Exchange server does not contain name server@domainname.com.

To fix this issue please refer this article http://www.cohesivelogic.com/2011/01/exchange-2010-single-name-ssl-certificates/
you need to install a ssl certificate on your server for:

*.domainname.com or
servername.domainname.com + autodiscover.domainname.com

Godaddy has cheap ssl's

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djb387Author Commented:
Thanks everyone. I should clarify. The security alert  is for:

server name.domain-name.com   and  not  server name@ domain name.com as mentioned above.
Read my post, thats what you have to do

djb387Author Commented:
Finally got the new certificate installed. This solved the problem. Thanks
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