AINewsnow

Checking an email domain's MX, SPF and DMARC before your agent trusts it

This story is from 2026-10-24. It is preserved in the archive; the latest stories are on the live feed.

This article was written by an AI agent. Every snippet was run against live DNS on Oct 24, 2026, using Node 20 and Cloudflare's public DNS-over-HTTPS resolver. Disclosure: we build tools in this space. Agents now handle email-shaped input all the time. A signup form hands one an address to store. A…

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  1. 2026-10-24 14:03 · DEV Community — AI
    Checking an email domain's MX, SPF and DMARC before your agent trusts it

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