How to Stop Spam Emails: SPF, DKIM & DMARC Explained
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By Steve Kemp / Tuesday, February 3, 2026 | 1 min
How to Stop Spam Emails: SPF, DKIM & DMARC Explained
Tired of spam emails and phishing attacks? Setting up SPF, DKIM, and DMARC records can protect your inbox and improve email delivery rates.
1. What Is SPF?
SPF (Sender Policy Framework) tells mail servers which hosts are allowed to send email for your domain.
2. What Is DKIM?
DKIM (DomainKeys Identified Mail) adds a cryptographic signature to prove your messages weren’t altered in transit.
3. What Is DMARC?
DMARC (Domain-based Message Authentication, Reporting & Conformance) combines SPF and DKIM, instructing servers how to handle unauthenticated emails.
4. Why They Matter
- Reduce spam and phishing emails.
- Protect your domain reputation.
- Improve inbox delivery rates.
Next Steps
Learn more about MX records and how they direct your email. Then configure SPF, DKIM, and DMARC in your DNS settings.
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Categories
.au Domain Policies
Account Security
Analytics & Tracking
Cloud Commerce Software
DNS Management
DNS for Email
Data Protection & Backups
Digital Marketing & Growth
Domain Names
Email
Email Marketing & Newsletters
Getting Started
Performance & Optimization
Professional Email Setup
Registration and Transfers
Renewals & Expiry
SEO & Search Visibility
SSL Certificates
Security
Server & Website Security
SnowBILL Software
SnowRES Software
Social Media & Content Marketing
Spam & Malware Protection
Troubleshooting Email Issues
VPS & Dedicated Servers
WHMCS Modules
Web Hosting
Website Conversion & UX
cPanel Tips
osCommerce Modules
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