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Email Security1 June 2025

What is DMARC and Why Every South African Business Needs It

Email spoofing and phishing cost South African businesses millions each year. DMARC is your first line of defence — and most businesses don't have it configured correctly.

DMARC (Domain-based Message Authentication, Reporting & Conformance) is an email authentication protocol that protects your domain from being used in phishing and spoofing attacks.

Why DMARC Matters for South African Businesses Without DMARC, cybercriminals can send emails that appear to come from your domain — tricking your clients, suppliers and staff into clicking malicious links or transferring money.

SPF, DKIM and DMARC — The Email Security Trio - **SPF** (Sender Policy Framework): Lists which servers are allowed to send email from your domain - **DKIM** (DomainKeys Identified Mail): Cryptographically signs your emails to prove they haven't been tampered with - **DMARC**: Ties SPF and DKIM together and tells receiving servers what to do with emails that fail authentication

Check Your Domain Now Use our free DMARC checker to see your current email security score in seconds.

ROI Technologies and Sendmarc As a Sendmarc partner, ROI Technologies implements and manages DMARC for businesses across South Africa — from initial setup to full p=reject enforcement.

Contact us at info@roitech.co.za or call +27 11 476 8817.

Need IT or Cybersecurity help in South Africa?

Talk to ROI Technologies — Johannesburg-based, certified, vendor-agnostic.

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