This certificate with thumbprint ********* and subject '*.yourdomain.com' cannot used for POP SSL/TLS connections because the subject is not a Fully Qualified Domain Name (FQDN). Use command Set-POPSettings to set X509CertificateName to the FQDN of the se

Hi All,

We have on on-prem. Exchange server 2013 server, with DAG configured on the same. when we assigning POP and IMAP services on wildcard certificate it showing below error.

"This certificate with thumbprint ********* and subject '*.yourdomain.com' cannot used for POP SSL/TLS connections because the subject is not a Fully Qualified Domain Name (FQDN). Use command Set-POPSettings to set X509CertificateName to the FQDN of the service."

due to this we are facing certificate error popups at client end where we have configured POP and Imap a/c.

Please help us to resolve this issue.

Regards, Prashant