How SPF, DKIM & DMARC Stop Email Spoofing (Explained Simply)
Anyone can put your address in the "from" line of an email and hit send. SPF, DKIM, and DMARC are the three DNS records that let receiving mail servers tell a real message from a forgery. This is the clear, no-jargon version of how each one works, where each one falls short on its own, and how the three together shut the door on people sending as you.
You'll learn:
Why email lets anyone forge your name
SPF: the public list of who's allowed to send for you (and its two blind spots)
DKIM: the tamper-proof signature that proves a message wasn't altered
The gap a scammer slips through even when SPF and DKIM pass
DMARC: alignment, policy (monitor / quarantine / reject), and reporting
Why turning on enforcement safely is the genuinely hard part
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Chapters:
0:00 Anyone can forge your email
0:34 The three records, one job each
1:05 SPF: who's allowed to send
2:00 DKIM: the tamper-proof signature
2:55 The gap scammers slip through
3:31 DMARC: alignment, policy, reporting
4:33 All three on one message
5:16 Why monitoring is the hard part
6:01 Protect your domain
#DMARC #EmailSecurity #SPF #DKIM #phishing