5.7.1 DMARC checks failed Backblaze

Hi I am trying to register a Backblaze account using my Cloudflare email forwarder, but I keep getting the error “5.7.1 DMARC checks failed” on the email from [email protected] and I never end up receiving it. Thus I cannot complete verification, upon contacting Backblaze support they suggested it was a Cloudflare issue