Tag
dmarc
Safeguard articles tagged "dmarc" — guides, analysis, and best practices for software supply chain and application security.
2 articles
Application Security
Inbound Email Is an Unauthenticated API You Forgot You Built
Reply to a notification and it appears in the ticket. Forward a document and it imports. The From header is a string the sender chooses, and it is what most implementations key on.
Sep 18, 20265 min read
Infrastructure Security
The Domains You Registered Defensively Can Send Mail As You
You configured SPF, DKIM and DMARC on the domain you send from. The eleven others you own have no email authentication at all, and the ones closest to your real name are the most useful to an attacker.
Sep 18, 20265 min read
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