I’ve successfully set up LetsEncrypt on my vps, websites are now working as they should with https.
However, when I send a mail through a mail client I’m running into an issue.
I’d like to use mail.website.com as my outgoing server. When sending mail, I get a certificate warning telling me there’s a name mismatch. The name in the certificate is server.server.com.
I have a certificate setup for website.com, so I was expecting to see website.com as the certificate name. Is the server’s cert being handed over because I have only one IP address?
Is there a way to avoid the cert mismatch besides changing the outgoing server to match the server’s cert name?