Defensive Security (Blue Team) / Hardening
Lesson 14 of 32
Email security
Most attacks start with email. Filters block malware and spam, SPF/DKIM/DMARC stop domain spoofing, and training helps people report suspicious messages.
Key points
- Turn on DMARC for your domain
- Make reporting phishing easy
- Banner external emails
Quiz · +10 XP
Which record helps stop others sending email pretending to be your domain?
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