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Gmail sender requirements
Reviewed by the Free Domain Mail editorial team · Updated
Reliable Gmail delivery begins with properly aligned authentication and recipients who expect your messages.
Foundation
Configure SPF and DKIM, publish DMARC, and maintain the records whenever your sending services change.
Make From addresses clear, use honest subjects and only send mail a recipient expects.
Delivery hygiene
Process bounces and complaints quickly. Do not keep sending to addresses that permanently fail.
Marketing mail should have a clear unsubscribe path. Transactional mail should remain relevant to the recipient.
Common mistakes to avoid
- Treating DNS authentication as an inbox guarantee.
- Sending sudden volume from a new domain.
- Using bought, scraped or unverified recipient lists.
Frequently asked questions
Will p=reject force Gmail inbox placement?
No. Authentication protects identity; reputation and engagement still matter.
What should I check first?
Run Email Health Check, then confirm message headers after a real test send.
Technical references
Primary specifications and provider documentation relevant to this guide: