When I switched to cloudflare nameservers, my email and CalDav services on my server failed. I use cPanel v70.
I’m surprised about CalDav, as that usually uses HTTP, but you can try to fix both issues by setting the relevant DNS entries to .
Both route through mail.domain.com, and I tried that. Email uses port 993 for imap and 465 for smtp, and CalDav uses port 2080
If mail.domain.com is set to , it shouldn’t be an issue. If you post the domain name, I can take a closer look. Otherwise, you can open a Support Ticket:
Login to Cloudflare and then contact Cloudflare Support
Do you have two DNS entries for ‘mail’? The first one in my lookup looks ok, but the second is a CNAME for the naked domain which is going through Cloudflare .
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