Hello Team, 1) Is there any way to issue a LE certificate for an email? I have one user who is using Apple Mail on his iOS device and it's giving him hard time to make it work with the self-signed certificate. I typically point the IMAP/SMTP to mail.example.com but technically even example.com can be used as server since the email and web server are the same VPS/IP address. 2) How does the whole certificate issuance works anyway? Why once different ports are used the previously issued certificate becomes invalid? I actually tried to use example2.com:143 as mail server (for another domain) but the Thunderbird mail client gives error for invalid certificate but opening example2.com:443 in browser works just fine. Btw. I tried to search for answer and only found this^ but I don't think that applies to me.