Google & Yahoo 2024 Sender Requirements

Starting February 2024, Google and Yahoo require email authentication for all senders. Bulk senders (5,000+ emails/day to Gmail) have additional requirements.

Failure to comply may result in emails being rejected or marked as spam.

**1. SPF or DKIM Authentication** At minimum, set up SPF or DKIM for your sending domain.

**2. Valid Forward/Reverse DNS** Your sending IP must have a PTR record that resolves back.

**3. Low Spam Rate** Keep spam complaints below 0.1%. Never exceed 0.3%.

**4. RFC 5322 Compliance** Follow standard email formatting rules.

If you send 5,000+ emails/day to Gmail:

**1. Both SPF AND DKIM Required** You need both authentication methods, not just one.

**2. DMARC Policy Required** At minimum: v=DMARC1; p=none

**3. DMARC Alignment** Either SPF or DKIM must align with your From domain.

**4. One-Click Unsubscribe** Include List-Unsubscribe-Post header for marketing emails.

Use IntoDNS.ai's Sender Requirements Checker to verify:

□ SPF record exists and is valid □ DKIM configured for your email provider □ DMARC record exists (at least p=none) □ PTR records for sending IPs □ Spam rate monitored (use Google Postmaster Tools) □ Unsubscribe header in marketing emails

If you're starting from scratch:

1. **Week 1:** Set up SPF record 2. **Week 2:** Configure DKIM with your email provider 3. **Week 3:** Add DMARC with p=none and monitoring 4. **Week 4:** Implement one-click unsubscribe 5. **Ongoing:** Monitor reports and spam rates

• [Google Email Sender Guidelines](https://support.google.com/mail/answer/81126) • [Yahoo Sender Best Practices](https://senders.yahooinc.com/best-practices/) • [Google Postmaster Tools](https://postmaster.google.com/) • IntoDNS.ai Sender Requirements Checker