Exchange 2013 Certificate Errors
Posted on 2014-07-17
We are having issues with our new Exchange 2013 environment when Outlook is being opened we are being prompted for credentials and a certificate error "The name on the security certificate is invalid or does not match the name of the site"
The thing that I think makes it complicated is we already have a 2007 Exchange environment and we are wanting to migrate to 2013 so at present it is still in test.
Exchange 2007 - 1 Server (CAS/Mailbox)
Exchange 2013 - 4 Servers, 2 CAS and 2 Mailbox Servers
I've got NLB set up on the CAS servers to a DNS record "CAS" and this works perfectly.
All virtual directories have been amended and a new certificate containing the new CAS Servers with the virtual NLB record is in the certificate too and installed and enabled with the IIS,POP,IMAP services.
When launching Outlook though when actually viewing the certificate it is pointing to 1 issued by the actual CAS itself with only the CAS server in the list of records which I'm guessing why it isn't working.
Totally confused as I cannot find this certificate anywhere on the CAS server even in the Cert Manager, I don't want that CAS server issuing the certificate I'd like it to send out the one I've generated and enabled in Exchange which has the CAS servers and also the virtual NLB record too. Please assist its massively appreciated.