Warmy is an email deliverability platform that improves sender reputation and ensures emails land in the inbox rather than spam. It automates warm-up, runs deliverability tests, checks DNS records, and monitors inbox health.

How to Use Warmy: Reach 100% Inbox Placement in 2026

by Fahim Joharder | Last updated Mar 5, 2026

Quick Start

This guide covers every Warmy feature:

Getting Started — Create account and connect your inbox
How to Use Email Warm-Up — Build sender reputation automatically
How to Use Email Seed List — Test inbox placement across real inboxes
How to Use Deliverability Test — Diagnose spam issues before you send
How to Use Template Checker — Score your email content for deliverability
How to Use Signature Builder — Create professional email signatures fast
How to Use Adeline AI — Let AI manage warm-up interactions automatically
How to Use Google Postmaster Integration — Monitor domain health inside Gmail
How to Use Sequence Builder — Automate outreach sequences from a warm domain
How to Use SPF Record Generator — Set up SPF, DKIM, and DMARC records easily

Time needed: 5 minutes per feature

Also in this guide: Pro Tips | Common Mistakes | Troubleshooting | Pricing | Alternatives

Why Trust This Guide

I’ve used Warmy for several months and tested every feature covered here.

This tutorial comes from real hands-on experience — not marketing copy or vendor screenshots.

Warmy is one of the most straightforward email deliverability tools available today.

But most users only set up warm-up and miss the deeper features.

This guide shows you how to use every major feature.

Step by step, with screenshots and pro tips.

Warmy Tutorial

This complete Warmy tutorial walks you through every feature step by step, from connecting your inbox to advanced deliverability testing.

Warmy

Stop letting your cold emails land in spam. Warmy automatically warms up your inbox, builds sender reputation, and runs deliverability tests so your emails reach real inboxes. Trusted by SDRs, founders, and sales teams worldwide.

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Getting Started with Warmy

Before using any feature, complete this one-time setup.

It takes about 3 minutes.

Watch this quick overview first:

Warmy.io Review: 7 Things You Need To Know Before Buying (Best Email Deliverability Software)

Now let’s walk through each step.

Step 1: Create Your Account

Go to warmy.io and click “Get Started.”

Enter your email address and create a password.

Confirm your account using the link sent to your inbox.

✓ Checkpoint: Check your inbox for a confirmation email from Warmy.

Step 2: Connect Your Email Inbox

Choose your email provider — Gmail, Google Workspace, Outlook, or custom SMTP.

Here’s what the dashboard looks like:

✓ Checkpoint: Your inbox should appear as “Connected” in the dashboard.

Step 3: Set Your Warm-Up Speed

Choose Slow (~70 days), Medium (~35 days), or Fast (~24 days) based on your timeline.

New domains should start on Slow to avoid triggering spam filters.

✅ Done: You’re ready to use any feature below.

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How to Use Warmy Email Warm-Up

Email Warm-Up lets you build sender reputation automatically by simulating real human inbox activity.

Here’s how to use it step by step.

Watch Email Warm-Up in action:

Now let’s break down each step.

Step 1: Select Your Connected Inbox

From the dashboard, click on the inbox you want to warm up.

If you haven’t connected one yet, go back to Getting Started above.

Step 2: Configure Warm-Up Settings

Set your warm-up speed: Slow, Medium, or Fast.

Here’s what the settings panel looks like:

✓ Checkpoint: You should see the warm-up schedule and estimated completion date.

Step 3: Activate and Monitor Progress

Click “Start Warm-Up” to activate the process.

Warmy’s AI engine (Adeline) will begin sending and receiving warm-up emails on your behalf.

Check the dashboard daily to monitor your inbox health score improving over time.

✅ Result: Your sender reputation improves gradually as Warmy simulates real engagement.

💡 Pro Tip: Run warm-up for at least 2–3 weeks before launching any cold outreach campaign for best results.

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How to Use Warmy Email Seed List

Email Seed List lets you test where your emails actually land across real inboxes and providers.

Here’s how to use it step by step.

Watch Email Seed List in action:

Now let’s break down each step.

Step 1: Navigate to the Seed List Section

From the main dashboard, click “Seed List” in the left-hand navigation menu.

Step 2: Send Your Test Email to the Seed Addresses

Copy the seed email addresses provided by Warmy.

Here’s what the seed list setup looks like:

✓ Checkpoint: You should see a list of seed addresses from multiple providers including Gmail and Outlook.

Step 3: Review Inbox Placement Results

Send your email to those seed addresses and return to Warmy to see placement results.

Results show whether your email landed in inbox, promotions, or spam across providers.

✅ Result: You know exactly where your emails land before sending to your real list.

💡 Pro Tip: Run a seed list test after any major change to your email content or sending domain.

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How to Use Warmy Deliverability Test

Deliverability Test lets you diagnose spam issues, check DNS records, and score your inbox health before a campaign.

Here’s how to use it step by step.

Watch Deliverability Test in action:

Now let’s break down each step.

Step 1: Open the Email Deliverability Test Tool

Click “Deliverability Test” from the left navigation panel in your Warmy dashboard.

Step 2: Send a Test Email to the Provided Address

Warmy gives you a unique test address to send a sample email from your inbox.

Here’s what the deliverability test report looks like:

✓ Checkpoint: Results appear within minutes showing your SPF, DKIM, DMARC, and spam score.

Step 3: Fix Any Issues Flagged in the Report

Review each flagged item — Warmy explains what’s wrong and how to fix it.

Common fixes include updating DNS records or removing spammy links from your email template.

✅ Result: You get a full deliverability health check with actionable fixes in one place.

💡 Pro Tip: Run a deliverability test weekly during active cold email campaigns to catch issues early.

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How to Use Warmy Template Checker

Template Checker lets you score your email content for spam triggers and deliverability issues before sending.

Here’s how to use it step by step.

Watch Template Checker in action:

Now let’s break down each step.

Step 1: Go to Template Checker

Click “Template Checker” in the left navigation menu of your Warmy dashboard.

Step 2: Paste Your Email Template

Paste the subject line and body of your email into the checker fields.

Here’s what the template checker interface looks like:

✓ Checkpoint: You should see a score appear alongside a list of flagged issues.

Step 3: Review Flags and Edit Your Template

Warmy highlights spam words, broken links, and formatting issues in your template.

Edit your email based on the suggestions, then re-check until you get a clean score.

✅ Result: Your email template is optimized for inbox placement before it reaches a single recipient.

💡 Pro Tip: Always check templates after adding new links or changing your call-to-action phrasing.

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How to Use Warmy Signature Builder

Signature Builder lets you create a professional, deliverability-friendly email signature in minutes.

Here’s how to use it step by step.

Watch Signature Builder in action:

Now let’s break down each step.

Step 1: Open Signature Builder

Click “Signature Builder” in the tools section of your Warmy dashboard.

Step 2: Enter Your Details and Choose a Template

Fill in your name, title, company, phone number, and website URL.

Here’s what the signature builder looks like:

✓ Checkpoint: A live preview of your signature should appear on the right side of the screen.

Step 3: Copy and Install Your Signature

Click “Copy Signature” and paste it directly into your email client’s signature settings.

Works with Gmail, Outlook, and most major email providers.

✅ Result: You have a clean, professional signature that won’t trigger spam filters.

💡 Pro Tip: Keep your signature simple — avoid excessive links or images that can hurt deliverability scores.

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How to Use Warmy Adeline AI

Adeline AI lets you automate warm-up interactions using an AI engine that mimics real human email behavior.

Here’s how to use it step by step.

Watch Adeline AI in action:

Now let’s break down each step.

Step 1: Enable Adeline AI on Your Inbox

Go to your inbox settings inside Warmy and toggle on “Adeline AI.”

Adeline is enabled by default when you start a new warm-up — verify it’s active.

Step 2: Choose Language and Interaction Settings

Select your preferred warm-up language — Warmy supports over 30 languages.

Here’s where you configure Adeline’s behavior:

✓ Checkpoint: Adeline should show as “Active” with a daily interaction count estimate.

Step 3: Let Adeline Run and Review Metrics

Adeline handles all warm-up sends, replies, and inbox interactions automatically.

Check your dashboard weekly to review open rates, click-through rates, and bounce rates.

✅ Result: Your inbox builds a trustworthy sending history with zero manual effort required.

💡 Pro Tip: Switch Adeline’s language to match your target audience for more realistic warm-up patterns.

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How to Use Warmy Google Postmaster Integration

Google Postmaster Integration lets you monitor domain reputation and spam rates directly inside Gmail’s Postmaster Tools from Warmy.

Here’s how to use it step by step.

Watch Google Postmaster Integration in action:

Now let’s break down each step.

Step 1: Connect Google Postmaster Tools

Go to “Integrations” in your Warmy dashboard and select “Google Postmaster.”

Step 2: Verify Your Domain

Follow the verification steps to confirm ownership of your domain inside Google Postmaster Tools.

Here’s what domain verification looks like:

✓ Checkpoint: Your domain should appear as “Verified” inside Warmy’s integration panel.

Step 3: Monitor Domain Reputation Data

Warmy pulls in your domain health score (0–100), spam rate, and IP reputation from Postmaster Tools.

Review this data weekly alongside your warm-up metrics for a full picture.

✅ Result: You can track Gmail-specific domain reputation without leaving your Warmy dashboard.

💡 Pro Tip: If your domain health score drops below 70, increase warm-up speed and pause cold outreach temporarily.

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How to Use Warmy Sequence Builder

Sequence Builder lets you create automated outreach sequences from a warmed and healthy sending domain.

Here’s how to use it step by step.

Watch Sequence Builder in action:

Now let’s break down each step.

Step 1: Open Sequence Builder

Click “Sequences” in the left navigation menu of your Warmy dashboard.

Click “New Sequence” to start building your first outreach flow.

Step 2: Add Steps and Set Delays

Add email steps to your sequence and set the delay between each follow-up in days.

Here’s what the sequence builder interface looks like:

✓ Checkpoint: Each step should show the email content, delay, and conditions for sending.

Step 3: Assign Contacts and Launch

Upload your contact list or paste email addresses into the sequence.

Click “Launch Sequence” to start automated outreach from your warmed inbox.

✅ Result: Your outreach runs on autopilot from a domain with strong deliverability history.

💡 Pro Tip: Keep daily send volume from a new inbox under 50 emails, even after warming, to protect your reputation long-term.

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How to Use Warmy SPF Record Generator

SPF Record Generator lets you create and validate SPF, DKIM, and DMARC DNS records without any technical knowledge.

Here’s how to use it step by step.

Watch SPF Record Generator in action:

Now let’s break down each step.

Step 1: Navigate to SPF Record Generator

Click “Tools” in your Warmy dashboard, then select “SPF Record Generator.”

Step 2: Enter Your Domain and Email Providers

Type in your domain name and select the email services you use (e.g., Gmail, SendGrid).

Here’s what the SPF generator form looks like:

✓ Checkpoint: Warmy generates your SPF record string automatically based on your selections.

Step 3: Copy and Add the Record to Your DNS

Copy the generated SPF record and add it as a TXT record in your domain’s DNS settings.

Repeat the same process for DKIM and DMARC records if needed.

✅ Result: Your domain is fully authenticated with SPF, DKIM, and DMARC for maximum deliverability.

💡 Pro Tip: Always verify your DNS records 24–48 hours after adding them using Warmy’s deliverability test.

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Warmy Pro Tips and Shortcuts

After testing Warmy for several months, here are my best tips.

Keyboard Shortcuts

Action	Shortcut
Open dashboard	Alt + D
Add new inbox	Alt + N
View deliverability report	Alt + R
Access template checker	Alt + T

Hidden Features Most People Miss

Multi-language warm-up: Warmy supports over 30 languages — switch Adeline’s language to match your target market for more authentic engagement patterns.
Domain Health Score: The 0–100 domain trustworthiness score updates in real time — check it before every major campaign launch to avoid deliverability surprises.
Automatic replies toggle: Warmy can send automatic replies to warm-up emails — this feature mimics real human back-and-forth and is one of the most powerful reputation builders in the tool.

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Warmy Common Mistakes to Avoid

Mistake #1: Starting Cold Outreach Too Soon

❌ Wrong: Connecting a new inbox and launching a campaign the same week.

✅ Right: Run warm-up for at least 2–4 weeks before sending any cold emails from a new inbox.

Mistake #2: Using Fast Mode on a Brand-New Domain

❌ Wrong: Setting warm-up speed to Fast on a domain registered within the last 30 days.

✅ Right: Use Slow mode for new domains and only switch to Medium or Fast after 4+ weeks of clean history.

Mistake #3: Ignoring DNS Authentication Records

❌ Wrong: Running warm-up without setting up SPF, DKIM, and DMARC records first.

✅ Right: Use Warmy’s SPF Record Generator to set up all three DNS records before starting any warm-up.

Try warmy FOR FREE

Warmy Troubleshooting

Problem: Inbox won’t connect to Warmy

Cause: Two-factor authentication or app password settings blocking the connection.

Fix: For Gmail, generate an App Password under Google Account → Security → App Passwords. For Outlook, enable SMTP Auth in your Microsoft 365 admin panel. Then reconnect in Warmy.

Problem: Warm-up emails landing in spam

Cause: Missing DNS records (SPF/DKIM/DMARC) or sending volume too high for a new inbox.

Fix: Use Warmy’s SPF Record Generator to set up authentication records, then switch warm-up speed to Slow until your domain health score reaches 80+.

Problem: Deliverability test score not improving

Cause: Active cold email campaigns running in parallel may be generating spam complaints that counteract warm-up progress.

Fix: Pause all cold outreach for 1–2 weeks, let Warmy run warm-up in isolation, then retest before resuming campaigns.

📌 Note: If none of these fix your issue, contact Warmy support at warmy.io.

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What is Warmy?

Warmy is an email deliverability tool that improves sender reputation by simulating real inbox activity and managing the warm-up process automatically.

Think of it like a personal trainer for your email domain — it builds strength gradually so your emails perform when it matters most.

Watch this quick overview:

#Email #warmup by #Warmy Review. Remove the Darkness of #Spambox, and Show the Sunshine of Inbox.

It includes these key features:

Email Warm-Up: Automatically builds sender reputation through simulated inbox activity managed by Adeline AI.
Email Seed List: Tests where your emails actually land across Gmail, Outlook, and other providers before you send.
Deliverability Test: Checks SPF, DKIM, DMARC, and spam score with actionable fix recommendations.
Template Checker: Scores your email content for spam triggers and formatting issues before any campaign.
Signature Builder: Creates clean, professional email signatures that don’t hurt deliverability.
Google Postmaster Integration: Pulls domain health, spam rate, and IP reputation data from Gmail’s Postmaster Tools.
Sequence Builder: Runs automated outreach from a warmed, healthy sending inbox.
SPF Record Generator: Creates ready-to-use SPF, DKIM, and DMARC records without any technical knowledge required.

For a full review, see our Warmy review.

Try warmy FOR FREE

Warmy Pricing

Here’s what Warmy costs in 2026:

Plan	Price	Best For
B2B Sender	Contact us for pricing	B2B sales teams and SDRs
B2C Sender	Contact us for pricing	B2C marketers and e-commerce senders
Custom Plan	Contact us for pricing	Agencies and high-volume teams

Free trial: Yes — Warmy offers a free trial period to test core features before committing to a paid plan.

Money-back guarantee: Contact Warmy support for current refund policy details.

💰 Best Value: B2B Sender — ideal for solo founders and SDRs warming up 1–2 inboxes with full access to Adeline AI and deliverability tools.

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Warmy vs Alternatives

How does Warmy compare? Here’s the competitive landscape:

Tool	Best For	Starting Price	Rating
Warmy	Email warm-up + deliverability testing	Contact for pricing	⭐ 4.5
Instantly	High-volume cold email at scale	$30/mo	⭐ 4.3
Apollo	All-in-one prospecting + outreach	Free	⭐ 4.5
Hunter.io	Email finding and verification	Free	⭐ 4.5
Reply.io	Multichannel outreach automation	$49/user/mo	⭐ 4.2
Lemlist	Personalized cold email campaigns	$55/mo	⭐ 4.5
Woodpecker	Agency-friendly cold email sequencing	$20/mo	⭐ 4.5
Smartlead	Unlimited mailbox cold outreach	$32.5/mo	⭐ 4.5
Warmbox	Budget-friendly inbox warming	$15/mo	⭐ 4.5
Mailshake	Simple cold email for small teams	$25/mo	⭐ 4.0

Quick picks:

Best overall warm-up tool: Warmy — most feature-complete with deliverability test, seed list, and Adeline AI in one place.
Best budget option: Warmbox — starts at $15/month for solo inbox warming with fewer features.
Best for beginners: Warmy — quick setup, clear dashboard, and Adeline AI handles everything automatically.
Best for high-volume outreach: Instantly — built for teams running hundreds of cold email sequences at scale.

🎯 Warmy Alternatives

Looking for Warmy alternatives? Here are the top options:

⚡ Instantly: Best for teams sending high-volume cold email campaigns with unlimited sending accounts and built-in warm-up included.
🎯 Apollo: All-in-one prospecting and outreach platform with a free plan, email finder, and sequencing in one tool.
🔧 Hunter: Leading email finder and verifier — great for building clean, deliverable contact lists before any outreach campaign.
🏢 Reply IO: Multichannel outreach automation covering email, LinkedIn, and calls — strong pick for enterprise sales teams.
💰 UpLead: B2B contact database with 95% accuracy and a free trial — pairs well with any warm-up tool for outbound campaigns.
📊 Mailshake: Simple and affordable cold email tool for small teams that need basic sequencing without complex setup.
🎨 Lemlist: Personalised cold email with image and video customisation — strong choice when reply rates matter most.
🔥 Woodpecker: Agency-friendly cold email sequencing with strong deliverability features and a low entry price point.
🧠 Smartlead: Unlimited mailbox warm-up and cold email at a flat monthly rate — ideal for agencies managing many client domains.
🌟 Saleshandy: Cold email outreach with built-in warm-up, sequence automation, and sender rotation for better deliverability.
💼 Klenty: Sales engagement platform with cadence automation and CRM integrations for structured outbound teams.
💰 Warmbox: Budget-friendly inbox warming starting at $15/month — solid pick for solo founders warming a single inbox.
🚀 Maildoso: Managed email infrastructure service with pre-warmed mailboxes ready for immediate cold outreach use.
⭐ Manyreach: Credit-based cold email platform — good for teams that send in bursts rather than continuously.

For the full list, see our Warmy alternatives guide.

⚔️ Warmy Compared

Here’s how Warmy stacks up against each competitor:

Warmy vs Instantly: Warmy wins on deliverability depth and diagnostics; Instantly wins on volume and sequence scale for large outbound teams.
Warmy vs Apollo: Warmy focuses purely on deliverability and warm-up; Apollo adds prospecting and data enrichment making it a broader but less specialized tool.
Warmy vs Hunter: Warmy warms your inbox; Hunter finds the contacts to fill it — they solve different problems and work well together.
Warmy vs Reply IO: Warmy is better for warm-up and deliverability; Reply IO wins for multichannel sequencing across email, LinkedIn, and phone.
Warmy vs UpLead: Warmy improves deliverability; UpLead provides verified contacts — use both together for a complete cold outreach stack.
Warmy vs Mailshake: Warmy offers more deliverability tools; Mailshake is simpler and cheaper for small teams just needing basic cold email.
Warmy vs Lemlist: Warmy is better for warming; Lemlist is better for personalized cold email campaigns with image and video customization.
Warmy vs Woodpecker: Warmy wins on warm-up depth; Woodpecker wins for agencies managing client cold email campaigns with team features.
Warmy vs Smartlead: Both include warm-up, but Smartlead bundles it with unlimited cold email sending while Warmy focuses on deliverability diagnostics.
Warmy vs Saleshandy: Warmy has more advanced deliverability testing; Saleshandy wins for teams wanting warm-up and cold email sequencing in one tool.
Warmy vs Klenty: Warmy focuses on inbox health; Klenty is better for structured sales cadences with deep CRM integration and reporting.
Warmy vs Warmbox: Warmy offers more features including seed list, deliverability test, and Adeline AI; Warmbox is simpler and cheaper for basic warm-up.
Warmy vs Maildoso: Warmy warms your existing inbox; Maildoso provides pre-warmed managed mailboxes ready to send from immediately.
Warmy vs Manyreach: Warmy is the better dedicated warm-up tool; Manyreach is credit-based cold email — better for burst campaigns than continuous outreach.

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Start Using Warmy Now

You learned how to use every major Warmy feature:

✅ Email Warm-Up
✅ Email Seed List
✅ Deliverability Test
✅ Template Checker
✅ Signature Builder
✅ Adeline AI
✅ Google Postmaster Integration
✅ Sequence Builder
✅ SPF Record Generator

Next step: Pick one feature and try it now.

Most people start with Email Warm-Up.

It takes less than 5 minutes to connect your inbox and activate.

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Frequently Asked Questions

How does Warmy work?

Warmy connects to your email inbox and uses its AI engine (Adeline) to automatically send, receive, and reply to warm-up emails with other Warmy users. This simulates real human inbox activity, which signals to email providers like Gmail and Outlook that your domain is trustworthy. Over time, your sender reputation improves and your emails are more likely to land in the inbox instead of spam.

How to warm up an inbox with Warmy?

Connect your inbox (Gmail, Google Workspace, Outlook, or custom SMTP), choose your warm-up speed (Slow, Medium, or Fast), and click “Start Warm-Up.” Adeline AI handles everything from that point — you just monitor your inbox health score on the dashboard. New inboxes should use Slow mode for the first 4 weeks.

How much does Warmy cost?

Warmy currently offers B2B Sender, B2C Sender, and Custom Plan tiers — all priced on a contact-us basis depending on your inbox volume and team size. Visit warmy.io or contact their sales team directly for current pricing. A free trial is available to test the platform before committing.

What is Warmy?

Warmy is an email deliverability platform that helps improve sender reputation and ensures your emails land in the inbox rather than the spam folder. It automates the email warm-up process, runs deliverability tests, checks DNS records, and provides inbox health monitoring. It’s designed for SDRs, solo founders, and sales teams running cold outreach campaigns.

What are warm emails?

Warm emails are outreach messages sent to contacts who already have some awareness of you or your brand — as opposed to cold emails sent to strangers. In the context of Warmy, “warm-up emails” refer specifically to the automated emails the tool sends and receives to build your inbox’s sending reputation before you start real campaigns.

How do you check your email deliverability score?

Inside Warmy, go to “Deliverability Test,” send a sample email to the test address provided, and Warmy generates a full report including your spam score, SPF/DKIM/DMARC status, and inbox placement. You can also monitor your Domain Health Score (0–100) directly on the main Warmy dashboard at any time.

Is Warmy safe to use?

Yes, Warmy is safe to use when configured correctly. It uses read and send permissions on your connected inbox to manage warm-up activity — it does not access or store the content of your real emails. Like any warm-up tool, results are best when you follow Warmy’s recommended setup, start on Slow mode for new inboxes, and avoid running parallel high-volume campaigns during active warm-up.