SPF, DKIM, and DMARC: The Trio Protecting Your Domain
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By Steve / Monday, September 15, 2025 | 1 min
SPF, DKIM, and DMARC: The Trio Protecting Your Domain
Hackers love to spoof domains and send fake emails. To fight back, you need to configure SPF, DKIM, and DMARC. Together, they protect your domain from being abused.
1. SPF (Sender Policy Framework)
Defines which mail servers are allowed to send for your domain. Example: v=spf1 include:mailserver.com ~all
2. DKIM (DomainKeys Identified Mail)
Signs outgoing mail with a private key so recipients can verify it hasn’t been altered.
3. DMARC (Domain-based Message Authentication, Reporting & Conformance)
Sets rules for handling unauthenticated mail and sends reports to you about suspicious activity.
Why They Work Best Together
SPF alone isn’t enough. DKIM adds verification, and DMARC ties them together, giving you full control and visibility.
Next Steps
Not receiving emails correctly? See our troubleshooting guide. Want to stop spam? Learn more about SPF, DKIM & DMARC in action.
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Categories
.au Domain Policies
Account Security
DNS Management
DNS for Email
Data Protection & Backups
Domain Names
Email
Getting Started
Performance & Optimization
Professional Email Setup
Registration and Transfers
Renewals & Expiry
SSL Certificates
Security
Server & Website Security
Spam & Malware Protection
Troubleshooting Email Issues
VPS & Dedicated Servers
Web Hosting
cPanel Tips
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