|Message:||Microsoft Exchange couldn’t find a certificate that contains the domain name %1 in the personal store on the local computer. Therefore, it is unable to support the STARTTLS SMTP verb for the connector %2 with a FQDN parameter of %1. If the connector’s FQDN is not specified, the computer’s FQDN is used. Verify the connector configuration and the installed certificates to make sure that there is a certificate with a domain name for that FQDN. If this certificate exists, run Enable-ExchangeCertificate -Services SMTP to make sure that the Microsoft Exchange Transport service has access to the certificate key.|
This Warning event indicates that there is a problem loading a certificate to be used for STARTTLS purposes. Generally, this problem occurs if one or both of the following conditions is true:
Transport Layer Security (TLS) functionality requires that a valid certificate is installed in the computer’s personal certificate store.
To resolve this warning, perform the following steps: