CloudFlare email stopped working
Email Troubleshooting - Email not working since switching on Cloudflare
Email undeliverable when using Cloudflare

Typically, the mail hostname is an A record with an IP address. Ultimately,
anything running SMTP/POP/IMAP needs to be set to , as Cloudflare doesnt proxy email connections.
Change your mail CNAME record to Gray icon " DNS only "
ssl autogenerate
pause auto generate resume
host name

sub domain