554 5.7.9 Yahoo: message not accepted for policy reasons
Quick answer
Yahoo refused the message for policy reasons. Yahoo documents 553 and 554 replies as permanent failures, including messages that fail the sending domain's DMARC or DKIM checks. It is about the sender, the message or its authentication, not the recipient.
Recommended action: Fix sender reputation
Common causes
- The message failed DMARC for a domain with a reject policy.
- Content or links associated with spam or abuse.
- Poor reputation for the sending domain or IP.
What to do
Check authentication first (SPF, DKIM and DMARC alignment), then content and links. Review complaint rates and list sources, and verify the list before resending.
Provider note: RocketVerifier classifies Yahoo policy replies as blocked (unknown, free). Only Yahoo's explicit "doesn't have a yahoo.com account" reply makes an address undeliverable.
How to read 554 5.7.9
554 is the basic SMTP reply defined in RFC 5321. 5.7.9 is the enhanced status code from RFC 3463, which reads as class, subject and detail:
- Class
- 5Permanent failure
- Subject
- .7Security or policy
- Detail
- .9Yahoo: message not accepted for policy reasons
Further reading
FAQ
Frequently asked questions
Should I remove Yahoo addresses that bounced with 554 5.7.9?
No. The address was not the reason for the rejection. Fix the policy issue and resend.
Stop hard bounces before they start
Upload a list or call the API, and send only to addresses that can receive mail. Unknown results are always free.
100 free credits · No card required · Credits never expire