SPF, DKIM and DMARC are email authentication methods that help receiving servers decide whether your mail is trustworthy.
Key Points
- SPF lists which servers are allowed to send mail for your domain.
- DKIM adds a digital signature so receiving servers can verify that the message was not altered in transit.
- DMARC builds policy and reporting on top of SPF and DKIM so domain owners can tighten protection over time.
- These records improve deliverability and help reduce spoofing or phishing abuse that uses your domain name.
- Incorrect setup can also break legitimate email, so DNS entries should be added carefully and tested.
Frequently Asked Questions
Do I need all three?
For serious business email, using all three is strongly recommended.
Can a wrong SPF record block email?
Yes. Overly strict or incomplete SPF records can cause sending failures.
What does DMARC reporting do?
It helps you see how your domain is being used and whether messages pass authentication checks.
Need More Help?
If you need help with domains, hosting, email, DNS or transfers, contact Toothless Domains support with the exact domain name and the issue you want solved.
