Rex'sĀ Anchor Points & Field Notes
Updating SPF & DMARC records for heightened email security
Nov 19, 2025
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Watch over my shoulder as I find and fix a couple details on an SPF and DMARC record to tighten email security against someone spoofing my custom domain.Ā
DMARC records - test and update for a stricter policy
Nov 12, 2025
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DMARC = Domain-based Message Authentication, Reporting, and Conformance
p="none" meansĀ Policy = none.Ā Most are requiring p=reject or p=quarantine
rua=mailto:<an email address>Ā Ā means send an aggregate report via email
MXToolbox.com = a website to test your own DMARC settings for your custom d...