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DNS

DNS

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Reputation

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Deliverability

Deliverability
Inbox Placement

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Authentication

Foundations

Email Fundamentals

Infrastructure

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DNS
A records

Learning path

Authentication
DNS
Reputation
Warmup
Deliverability
Inbox Placement

A records

IPv4 address records used by hosts and often by mail server names.

Reading time:: 5 min
Difficulty:: Beginner
Estimated duration:: 5 min
Prerequisites:: DNS
Last updated:: 2026-07-15
Author:: empire

Prerequisites

DNSDomain Name System — the lookup fabric email authentication depends on.

Related Concepts

DNSDomain Name System — the lookup fabric email authentication depends on.

Where do you want to go next?

DNSDomain Name System — the lookup fabric email authentication depends on.

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