ミユナ (alice) <al...@coakmail.com> writes: > may I ask another question I am not sure. > > I have got the certificates from letsencrypt for the root domain, in > this case it's coakmail.com > > since the MUA uses coakmail.com as smtp/imap servers, this has no problem. > > but my MX RR is: box.coakmail.com
Tou definitely need the certificate for box.coakmail.com because that's the actual server that receives all the traffic. Best Olivier > > I know MX only accpets messages on port 25 (I am right here?), so the > certs issued to root domain will have no side effect for the incoming > messages from other MTAs? > > Thanks. > --
