"ミユナ (alice)" <al...@coakmail.com> writes: > Olivier wrote: >> Tou definitely need the certificate for box.coakmail.com because that's >> the actual server that receives all the traffic. > > does plain traffic on port 25 require a certificate?
Maybe RFC 8461 is our friend. In my case, i did setup all MXs with the certificate (Let's Encrypt) [^^^]. Sincerely, Linux fan Byung-Hee [^^^] <https://mta-sts.doraji.xyz/.well-known/mta-sts.txt> -- ^고맙습니다 _布德天下_ 감사합니다_^))//
