Error 522 on files all of a sudden

[jules]

Make sure Cloudflare IPs are allowlisted at the website host’s firewalls. Check out the following, too:

https://support.cloudflare.com/hc/en-us/articles/200171936-Error-520-Web-server-is-returning-an-unknown-error

Edge Cache TTL

Hello again, I want to know what the default value of Edge Cache TTL is? Also, please let me know how I may know programmatically when my file at Edge Cache is going to expire? Thanks & Regards, Anonymous

Which WAF rule blocks outlook

Hi, When I enable WAF with the “Cloudflare Specials” ruleset enabled, my outlook client disconnects from my exchange server (which is behind Cloudflare). There are 105 rules in that ruleset, but which rule is responsible for blocking outlook? I can’t realy make out from the rule names which one is responsible.