I've just moved my Let'sEncrypt certs to a new server for two domains with community help!
Now I want to install a signed certificate for my mailserver. I'm not asking for the mailserver-specific side, but for advice on what sort of cert I need.
The mailserver accepts mails for the two web domains, but the account (the MX record for both domains) is the server hostname.
I guess that the cert that the mailserver uses should be for the server hostname, and no doubt it is a different type to the HTTP ones I currently have.
Can someone point me to instructions on how to create the sort of key and cert that a mailserver needs for TLS. And will these be suitable and valid if I symlink to them from the filepaths my mailserver uses by default?