I’m fairly new to DNS.
Currently I’m managing DNS with he.net. Our MX records points to a cPanel hosted service. All is working fine.
I’ve gone through the basic setup in Cloudflare for our site (and it shows all the DNS records from he.net) but as soon as I switch nameservers from he to cloudflare email connection and delivery breaks.
Any suggestions or pointers as to what might be going wrong or where I can look to try and troubleshoot the issue?