Delvery Issues to Yahoo Addresses

Having issues sending to Yahoo email addresses with error

550 5.0.350 Remote server returned an error → 554 Message not allowed - [PH01] Email not accepted for policy reasons. Please visit https://senders.yahooinc.com/error-codes

Im sure we have SF, DKIM and DMARC enabled.

Welcome to the Cloudflare Community. :logodrop:

Make sure that you have valid DMARC, DKIM, and SPF published. If you want more specific help, we will need to know your domain name.

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