I've added a new account.  Using POP3 to fetch mail, I get this error:

!2023-02-25, 18:47:08: FETCH - TLS handshake failure. The server host name ("mydomain.com") does not match the certificate.

I have several other domains hosted on this server, and The Bat! accepts the server's self-signed certificate to receive mail from those accounts without problems (the self-signed cert it is in the Address Book as a root certificate).  How do I address this error?