Running Exchange 2010 standard, I can't seem to figure where the SMTP certificate is coming from, the server (ServerA) and clients are on the same subnet. When any client, Outlook 2003 to 2013 connect they are prompted with a certificate warning, stating the name on the cert does not match. When I click "view certificate" I see that is issued to ServerB by ServerB which should obviously be issued to ServerA. The other server (ServerB) is a MS Windows 2008 box. When I go to the server configuration on the mail server and review the certs that are applied I see the one I would expect to be delivered to the clients but is not getting applied but I do not see the certificate that is getting applied. Confused on how this is possible.