Operator guide

Cold Email Domain Setup Checklist

Cold email domains are campaign infrastructure, not brand assets. The goal is to protect the main company domain, isolate campaigns, and verify every sending path before volume starts.

Use separate domains for cold outreachVerify DNS before warmup or sendingKeep sending limits conservative

Calculate my setup → Get an infra plan

24–72h

target launch window once requirements are clear

100

Outlook inboxes included per domain package

2 lanes

Google Workspace for quality, Microsoft 365 for scale

Field Guide

Quick Answer

A cold email domain is ready when ownership is clean, MX records work, SPF is published once, DKIM is enabled, DMARC exists, forwarding is monitored, tracking is configured safely, and inbox limits are conservative.

Setup Checklist

Run this before any live outbound volume.

Buy domains separate from the main company domain.
Use one client, campaign, or market per domain group.
Configure MX records before sending.
Publish exactly one SPF record.
Enable DKIM for every sending provider.
Add DMARC at _dmarc.domain.com.
Set forwarding to a monitored inbox.
Connect inboxes to the sequencer and send a test.

Common Mistakes

The biggest mistake is buying domains and immediately pushing volume. New domains need clean DNS and a controlled ramp. Another common mistake is adding multiple SPF records when providers give separate snippets. SPF allows one record, so includes must be merged.

ScaledInboxes View

If setup takes more than a few minutes per domain, buyers should not do it manually at scale. The operational win is repeatability across every domain, inbox, and campaign.

Pricing model

Plan infrastructure by usable sending capacity.

Cheap inboxes get expensive when DNS is wrong, replacements are unclear, or campaigns sit blocked. Price the system, not just the mailbox.

Microsoft 365 / Outlook

$70/mo per domain100 inboxes included

Best for low-cost scale
Useful for provider diversification
Requires conservative send limits

Google Workspace

$3.50/mo per inbox5 inbox minimum

Best for Gmail-heavy audiences
Higher-quality lane for valuable accounts
Use controlled ramp-up, not brute force

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Setup quality

SPF, DKIM, DMARC, MX, forwarding, and sequencer connection need to be right before volume starts.

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True cost

Warmup time, replacement policy, support, and DNS mistakes change the real cost per usable inbox.

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Best fit

Built for operators who want managed infrastructure and fast human help across multiple campaigns.

Decision framework

How to choose the right inbox setup

Use the provider mix as a portfolio decision. One lane gives simplicity. Two lanes give resilience.

Use Google Workspace when

Your prospects are Gmail-heavy.
Placement quality matters more than lowest unit cost.
You are running smaller, higher-value campaigns.

Use Microsoft 365 when

You need lower-cost scale.
You want provider diversification.
You can spread volume conservatively across many inboxes.

FAQ

Common questions

How many inboxes do I need?

Start conservative. Use the calculator to map daily send goals into inbox count, domain count, and provider mix.

Should I use Google Workspace or Microsoft 365?

Google is stronger for Gmail-heavy audiences. Microsoft 365 can lower cost and diversify infrastructure. Serious operators often use both.

What matters more than price?

DNS accuracy, send limits, replacement policy, support speed, and domain isolation matter more than saving a few cents per inbox.

Next step

Need this sized for a real campaign?

Send daily volume, number of campaigns or clients, provider preference, and sequencer. We’ll map inboxes, domains, and monthly cost.

Request quote →Use calculator