Transactional vs Marketing Email: The Infrastructure Split
Transactional and marketing email look the same at the wire level. The infrastructure requirements diverge once you measure latency, complaint rates, and legal obligations.
Journal · Email infrastructure
4 articles in Email infrastructure.
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What Is DKIM? Email Authentication Standard Explained
DKIM adds an RSA cryptographic signature to every outbound email. The receiving MTA verifies it against your DNS-published public key before deciding where the message lands.
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Why Your Emails Go to Spam: A Deliverability Diagnostic
Emails land in spam because of broken authentication, damaged IP reputation, content triggers, or list hygiene failures. This diagnostic covers each cause in order.
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What an AI Coding Agent Should Never Touch in Production
Real incidents, a blast-radius comparison of Devin, Replit Agent, and Cursor, and the scoped-access rules we use before an AI coding agent touches production.
