Are there specific requirements for sending to Yahoo/AOL?

Yahoo and AOL have specific requirements for bulk senders that align with industry best practices but carry particular enforcement emphasis.

Authentication is mandatory. SPF and DKIM must pass. DMARC is expected. The 2024 bulk sender requirements formalized what Yahoo was already enforcing.

Complaint rates must stay below 0.1%. Yahoo enforces this threshold more strictly than some other providers. FBL participation helps manage this.

Volume consistency matters. Sudden spikes trigger throttling. New senders need to warm their IPs gradually.

List hygiene is expected. Hitting spamtraps or generating high bounce rates damages reputation quickly.

Yahoo provides Postmaster resources at postmaster.yahooinc.com with documentation and feedback tools.

Yahoo's requirements reflect industry standards with serious enforcement. Meet them consistently, and the inbox is achievable.

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