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Hijacking DNS with GitHub and Cloudflare
- xxdesmus 6y agoHi, I'm the Head of Trust & Safety at Cloudflare. I'd be happy to discuss the specifics of your domain's DNS settings that lead to this if you'd like to email me -- justinATcloudflareDOTcom This general issue though is addressed here: https://support.cloudflare.com/hc/en-us/articles/200168876-Email-undeliverable-when-using-Cloudflare https://support.cloudflare.com/hc/en-us/articles/200168876-E... Specifically: "Having an MX record for a root domain proxied through Cloudflare will reveal your origin web server’s IP address to potential attackers. See Why do I have a dc-######### subdomain? for further details." This support document links to the following other support article on this topic: https://support.cloudflare.com/hc/en-us/articles/360020296512#h_84167303211544035341530 https://support.cloudflare.com/hc/en-us/articles/36002029651... This article includes the following quote: "If your mail server resides on the same IP as your web server, your MX record will expose your origin IP address."