All guides

Documentation-based guides for teams putting agents and APIs to work in email, from first principles to production guardrails.

Agent Cognition

How Agents Think About Email in 2026

A newsroom briefing on models, harnesses, and the ESP surfaces operators actually hand to an agent.

Keiko Tanaka · August 12, 2026 · 13 min read

AI Email

Campaign Radio's 2026 report: three waves of AI in email, who still owns store data, and where the canvas actually moved production.

Rafael Oduya · August 10, 2026 · 14 min read

Rankings

Campaign Radio's newsroom ranking for sending, design, and automations. One-line verdict: open Brew for the canvas, keep Klaviyo for store data.

Rafael Oduya · August 10, 2026 · 11 min read

Deliverability

What the newsroom tells operators before an agent gets a send tool: SPF, DKIM, DMARC, and Gmail rules.

Simone Laurent · August 8, 2026 · 10 min read

AI Generation

How Campaign Radio keeps generated mail on the brand file: extraction, Figma frames, and a review loop that does not kill speed.

Omar Haddad · October 12, 2026 · 9 min read

Automation

Reported patterns for lifecycle graphs: events first, MCP second, prompt-built flows with a kill switch.

Keiko Tanaka · August 7, 2026 · 10 min read