Loading Empire…

Skip to content

Learn Fix Tools

Search/

Appearance

Filter topics…

Email Foundations

Email as a Distributed System
Actors, Protocols, and Standards
Hosts and Hostnames
IP Addresses and Addressing
Email Fundamentals

Authentication

Authentication

DNS

DNS

Reputation

Reputation

Warmup

Warmup

Deliverability

Deliverability

Inbox Placement

Inbox Placement
- Primary Inbox
- Promotions and Tabs
- Junk Folder

Infrastructure

Infrastructure

Home
Learn
Warmup
Cold IP

Learning path

Authentication
DNS
Reputation
Warmup
Deliverability
Inbox Placement

Cold IP

A sending IP with little or no positive delivery history.

Reading time:: 5 min
Difficulty:: Beginner
Estimated duration:: 5 min
Prerequisites:: IP reputation, Dedicated IP
Last updated:: 2026-07-15
Author:: empire

Definition

Cold IPs require a ramp even when the domain is already warm, because IP history is evaluated separately.

Prerequisites

IP reputationProvider trust in a sending IP address based on historical traffic quality and outcomes.
Dedicated IPA sending IP used exclusively by one sender, isolating reputation from neighbors.

IP reputationProvider trust in a sending IP address based on historical traffic quality and outcomes.
Dedicated IPA sending IP used exclusively by one sender, isolating reputation from neighbors.
WarmupControlled introduction of sending volume so mailbox providers learn to trust a domain or IP.

Open step-by-step: Warm up a dedicated IPMigrate traffic gradually onto a new dedicated IP with its own ramp plan.

Empire Services

Infrastructure Scaling ReviewReview whether IP allocation, DNS, and capacity can support planned volume growth.

PreviousCold Domain NextWarm Domain

Company

About
Contact
Services

Platform

Learn
Fix
Tools

Community

Empire is a living operator community — share practice, follow releases, and help shape the knowledge base.

Newsletter — coming soon

Legal

Privacy Policy
Terms of Use
Disclaimer
Editorial Policy
Cookie Policy

© 2026 Empire Email

Independent educational platform focused on email infrastructure, deliverability, and lifecycle marketing.