Glossary

Email infrastructure in plain English

Short, useful definitions for the terms that show up in deliverability, ESP architecture, and operational sending. No academic jargon, no marketing fluff.

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Email Deliverability

Core concept

The art and science of getting email into the inbox instead of the spam folder. Covers sender authentication, IP and domain reputation, list hygiene, ISP signals, and the operational practices that keep all of it healthy over time.

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