(04-18-2017, 10:29 PM)Ron-e Wrote: Just guessing, maybe your reverse MX records (ptr).
Https://intodns.com/thomasfoskolos.gr
Maybe also spf records?
Thank you for your quick reply Ron-e.
I use cloudflare for my nameservers so i doubt i can do anything about that, but also i dont see how this may affect my mail encryption.
SPF records are for telling who is allowed to send email from my domain. I can send and receive mails. The only problem is with their encryption.