Resources

Guides & playbooks.

In-depth deliverability guides, technical docs, and outbound playbooks. Written for founders and operators who want to understand the mechanics.

Complete Guide18 min read·May 2026

Everything That Matters Regarding Email Deliverability in 2026

Authentication mandates, AI filtering, warmup strategy, and the infrastructure non-negotiables. A complete technical guide for founders and operators running outbound.

AuthenticationWarmupGmailMicrosoftChecklist

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More coming soon

Guide

The Outbound Infrastructure Stack

Playbook

Cold Email Copywriting for Technical Founders

Checklist

Domain Health: A Diagnostic Checklist