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Why we picked it Mailgun is one of the infrastructure providers that actually sends the mail, so this is a hands-on, technically accurate walkthrough of what each DNS record does and how to add it, not marketing copy. Use it as your step-by-step when you are actually setting up SPF, DKIM, and DMARC for a new domain rather than just reading about the concepts.
How to authenticate your email for better delivery rates
From Mailgun
- SPF, DKIM, and DMARC are separate DNS TXT records that each do a different job
- DKIM cryptographically signs your message so receivers can verify it was not altered
- Start your DMARC policy at p=none with reporting on before moving to quarantine or reject
