Observed arrival · 2026-08-21

Email Spec: a field guide to good messages

specification.email Observed source

Editorial interest 86/100 Selection signal · not a rating of the site

A platform-agnostic specification for building, sending, and testing reliable email.

Landing page captured for the 2026-08-21 issue.

Why it surfaced

Email Spec breaks the subject into 30 concrete topics spanning MIME, authentication, deliverability, accessibility, rendering, privacy, security, and agent-ready automation. Every recommendation is meant to be sourced, testable, and useful across different clients and sending platforms, with a checklist and MCP integration included.

A platform-agnostic specification for building, sending, and testing reliable email.

Observed signals

Read the marks

Editorial observations of this landing page, not a rating.

○OpenPublic substance visible

✦PrettyNotable craft visible

●ProPolished or operationally mature

◎NicheUnusually specific use

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