# Warmerly

> Warmerly is automated email warmup software for cold outreach. It builds real sender reputation across Gmail and Outlook mailboxes so cold email lands in the inbox instead of the spam folder.

Warmerly runs continuous, human-like warmup conversations between your mailboxes and an aged peer pool, monitors inbox placement against seed accounts, automatically rescues messages from spam, and reports a health score per mailbox. It is warmup-only (no campaign sender) and integrates with whatever outreach tool you already use. Built for SDRs, agencies, and outbound teams. Pricing starts at GBP 9/month with unlimited mailboxes on every plan.

## What is email warmup?

Email warmup is the process of gradually sending and engaging with mail from a new or low-volume sending mailbox so that providers like Gmail and Outlook learn to treat it as a trusted human sender. A warmup tool such as Warmerly connects to your mailbox via OAuth and runs continuous, human-like conversations (sends, replies with quoted history, stars, label, mark important, and spam-folder rescue) against an aged peer pool, building the baseline reputation a mailbox needs before any cold outreach is sent.

## Product
- [Home](https://warmerly.com/): What Warmerly does, who it is for, and how it lands you in the inbox.
- [Features](https://warmerly.com/features): Pool-based warmup, inbox-placement monitoring, spam rescue, health scoring, ramp schedules.
- [How it works](https://warmerly.com/how-it-works): The warmup model: peer pool, human-like sends and replies, daily ramp, and placement tests.
- [Pricing](https://warmerly.com/pricing): Plans: Solo GBP 9, Growth GBP 19, Agency GBP 39 — all with unlimited mailboxes.
- [Deliverability guide](https://warmerly.com/deliverability-guide): A practical guide to cold-email deliverability: authentication, warmup, list hygiene, and monitoring.
- [Glossary](https://warmerly.com/glossary): Plain-English definitions for every term in email warmup, deliverability, and cold outreach.

## Comparisons
- [Warmerly vs Instantly.ai](https://warmerly.com/compare/instantly): An honest comparison of Warmerly and Instantly.ai for email warmup in 2026. Pricing, peer network, spam recovery, feature coverage, and the trade-offs.
- [Warmerly vs Smartlead](https://warmerly.com/compare/smartlead): A side-by-side comparison of Warmerly and Smartlead for email warmup. Pricing, network quality, features, integrations, and the use cases each one wins.
- [Warmerly vs Mailwarm](https://warmerly.com/compare/mailwarm): Both Warmerly and Mailwarm are warmup-only tools. Here is how they compare on price, peer network, features, and modern signals like spam recovery.
- [Warmerly vs Mailreach](https://warmerly.com/compare/mailreach): An honest comparison of Warmerly and Mailreach for email warmup. Pricing model, peer network quality, spam recovery, and which tool fits your setup.
- [Warmerly vs Warmbox](https://warmerly.com/compare/warmbox): Warmerly vs Warmbox: an honest side-by-side on pricing, peer network, spam recovery, auth monitoring, and which tool makes more sense at scale.
- [Warmerly vs Lemwarm](https://warmerly.com/compare/lemwarm): Compare Warmerly and Lemwarm on price, peer network, spam recovery, and feature coverage. The honest case for switching.

## Guides & articles
- [Email Warmup Explained: What It Is, Why You Need It, and How It Actually Works in 2026](https://warmerly.com/blog/email-warmup-explained): A complete plain-English guide to email warmup for cold outreach. Learn what warmup is, why Gmail and Outlook care, the signals that move the needle, and how long it takes to warm a mailbox in 2026.
- [How to Get Out of Gmail's Spam Folder (and Stay Out) in 2026](https://warmerly.com/blog/how-to-fix-gmail-spam-folder): If your cold email is landing in Gmail's spam folder, here is exactly what to fix, in order. Authentication, content, ramp, warmup, complaints, and the postmaster tools that actually matter.
- [Instantly vs Smartlead vs Warmerly: Which Email Warmup Tool Is Right in 2026](https://warmerly.com/blog/instantly-vs-smartlead-vs-warmerly): An honest comparison of the three most-asked-about email warmup tools in 2026. Pricing, peer network quality, spam recovery, feature gaps, and the trade-offs nobody else is willing to write about.
- [SPF, DKIM, and DMARC for Cold Email: The Minimum You Must Configure in 2026](https://warmerly.com/blog/spf-dkim-dmarc-cold-email): Step-by-step instructions for configuring SPF, DKIM, and DMARC for a cold-outreach domain in 2026. Includes example DNS records, common mistakes, and how to verify everything is working.
- [How to Warm Up a New Email Domain Without Getting Flagged](https://warmerly.com/blog/warm-up-new-email-domain-without-getting-flagged): A practical guide to warming a brand new sending domain in 2026: authentication checklist, realistic ramp curves, the signals receivers track, and the early warnings that mean you should slow down.
- [Gmail vs Outlook: Why Your Cold Email Lands in Spam and How to Fix It](https://warmerly.com/blog/gmail-vs-outlook-cold-email-spam): Gmail and Outlook filter cold email very differently. Here is what each provider actually checks, how to read Postmaster Tools and SNDS, and what to change when one inboxes but the other does not.
- [SPF, DKIM, DMARC: The Deliverability Stack Explained for Outbound Teams](https://warmerly.com/blog/spf-dkim-dmarc-deliverability-stack-outbound): A practical walkthrough of the three core authentication standards, alignment modes, common configuration mistakes, and how to read DMARC aggregate (RUA) and forensic (RUF) reports.
- [The Honest Math of Email Warmup: How Long Should It Actually Take?](https://warmerly.com/blog/honest-math-of-email-warmup-duration): Domain age, target volume, recipient mix, and provider reputation all change the warmup clock. Here are the realistic curves and the indicators that say a mailbox is genuinely ready.
- [Why Your Reply Rate Is Lying to You About Deliverability](https://warmerly.com/blog/reply-rate-lying-about-deliverability): Open and reply rates feel like deliverability data, but they only measure what your engaged subset did. Here is how to use seed inbox testing and inbox placement to get the real picture.
- [What Is Sender Reputation? A Plain-English Guide for Cold Email Senders](https://warmerly.com/blog/what-is-sender-reputation): Sender reputation explained: what it is, how Gmail and Outlook score it, which signals move it up or down, and how to check and improve yours before scaling cold email.

## Company
- [Trust & security](https://warmerly.com/trust): How Warmerly handles mailbox credentials, OAuth, and data security.
- [Founder](https://warmerly.com/founder): Who builds Warmerly and why.
- [Contact](https://warmerly.com/contact): Get in touch with the Warmerly team.

## Legal
- [Privacy policy](https://warmerly.com/privacy)
- [Terms of service](https://warmerly.com/terms)
- [Cookie policy](https://warmerly.com/cookies)
- [Data processing agreement](https://warmerly.com/dpa)
- [Acceptable use policy](https://warmerly.com/acceptable-use)

## Full content
- [llms-full.txt](https://warmerly.com/llms-full.txt): The full text of every guide and comparison in one file.