Cakemail
Delivery Troubleshooting

Meeting Gmail and Yahoo Sender Requirements

Why this matters

In 2024, Gmail and Yahoo introduced stricter requirements for senders. If you don't meet them, your emails are much more likely to be sent to spam or rejected. These rules apply most strictly to bulk senders, but following them is good practice for everyone.

There are three requirements.

1. Authenticate your sending domain

Your domain must be authenticated so providers can confirm your emails are really from you.

2. Make it easy to unsubscribe

Recipients must be able to unsubscribe in one click, and you must honor unsubscribe requests promptly.

3. Keep your spam complaint rate low

Gmail and Yahoo expect senders to keep spam complaints low (Gmail asks senders to stay below a 0.3% complaint rate). High complaint rates hurt your deliverability for everyone.

Who needs to comply

These requirements are enforced most strictly for bulk senders (Gmail defines this as sending roughly 5,000 or more messages per day to Gmail addresses). However, authentication, easy unsubscribes, and a clean list are best practices for every sender, so we recommend meeting all three regardless of your volume.

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