Gmail and Yahoo Email Sender Requirements Update: What’s Changed?

Google and Yahoo introduced stricter email-sending requirements beginning February 1, 2024, primarily affecting bulk senders who send at least 5,000 messages daily, while Outlook announced similar bulk-sender policies in May 2025. The policies aim to reduce spam, phishing, and spoofing by requiring SPF, DKIM, and DMARC authentication, valid DNS and reverse-DNS configurations, RFC 5322 compliance, PTR records, and TLS connections. Senders are also expected to keep spam complaint rates below 0.1%, avoid the 0.3% high-risk threshold through relevant targeting and recipient-feedback monitoring, and provide a one-click unsubscribe option. The guidance emphasizes that reliable email infrastructure, separated marketing and transactional sending streams, and delivery analytics can help organizations meet these requirements, with Mailtrap presented as one platform offering these capabilities.

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