Yahoo Mail 554 5.7.1 [TS07]: content policy block.

Yahoo rejected the campaign because the content or URLs look abusive.

How to fix 554 5.7.1 [TS07].

Retrying or final
Final
A 5xx reply. The server will not accept this message. Resending it unchanged fails again.
Who is at fault
Sender
Your authentication, reputation, content, or sending pace.
Severity
ErrorPolicy Block
Permanent554 5.7.1 [TS07]

TS07 is often tied to phishing-like copy, obfuscated redirects, or malware hosting. Yahoo expects the offending content to be removed.

Next steps

  1. 1Review the exact creative that triggered the bounce and remove risky wording or links.
  2. 2Scan landing pages and tracking domains with multiple reputation tools.
  3. 3Avoid URL shorteners or chained redirects that obscure destination domains.
  4. 4Provide screenshots and remediation notes when contacting Yahoo support.
Yahoo Mail documentationEvery raw SMTP 554 reply

The same code at other providers.

Providers word the same code differently. Their fixes differ too.

554 5.7.1 [HME1]Apple Mail (iCloud)Authentication failureFinal
554 5.7.1Apple Mail (iCloud)DMARC failureFinal
554 5.7.1 [CS02]Apple Mail (iCloud)Phishing or spoofing contentFinal
554 5.7.1 [CS03]Apple Mail (iCloud)Suspicious attachment or linkFinal
554 5.7.1 [HM08]Apple Mail (iCloud)Local policy blockFinal

More Yahoo Mail codes.

Full Yahoo Mail playbook

Other Yahoo Mail fixes

421 4.7.0 [TS01]New or cold IP throttleRetrying
421 4.7.0 [TS02]Complaint rate deferralRetrying
421 4.7.0 [TS03]Reputation holdRetrying
421 4.7.0 [TSS04]Temporary deferralRetrying
451Unresolvable from domainRetrying
554Unresolvable from domainFinal

In the glossary

Bounce (Hard)Hard bounce is when an email cannot be delivered because the address is invalid or blocked. It is a permanent failure and the address should be removed from your list.
Suppression ListA suppression list is the place your email tool keeps addresses that should not receive messages. It is a permanent "do not send" list that helps you avoid emailing people who have opted out or caused issues in the past.
List HygieneList hygiene is the practice of cleaning your email list by removing bad or inactive addresses. It keeps your list focused on people who still want your emails.
Bounce RateBounce rate is the percentage of emails that could not be delivered to recipients. It shows how many addresses are invalid or blocked compared to the total you tried to send.

Browse all raw Yahoo Inc replies →

More references.

SMTP field manual.

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