I started to use Cloudflare, but I got some problems with mail management. I can receive and send emails through Vesta Roundcube webmail. But my outlook client stopped working. I can't add my email to any email client such as Apple Mail or Outlook. I think it does not receive a message from the mail server. I am stuck, I don't know where to look next.
This is my config on Cloudflare. And it seems fine. My web and email is on a different webserver. Any idea of what should be changed?