Warmbox

Warmbox

email warmup

Reviewed byRaphael Berrebi|GTM Automation Specialist|Jan 18, 2026
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Warmbox is an email warmup service that gradually builds sender reputation by simulating natural email activity to improve deliverability. It delivers value by warming up new email accounts gradually increasing sending volume, engaging with warmup network sending and receiving emails naturally, improving sender reputation through positive email interactions, removing emails from spam folders autom

Email DeliverabilityNetwork Growth

Used in 2 workflows

Popular Workflows with Warmbox

New Domain Warmup

Connect new inbox → Gradual volume ramp 2-4 weeks → Build sender reputation → Ready for campaigns

2-4 weeks
Email WarmupDeliverability

Continuous Reputation Maintenance

Keep warmup running → Maintain 90-95% inbox placement → Monitor health → Scale sending safely

Ongoing
Sender ReputationMaintenance
Complete Profile Guide

Everything You Need to Know About Warmbox

Complete guide to features, pricing, integrations, and implementation

Overview

  • Email Warmup
  • Deliverability Service
  • Sender Reputation
  • Inbox Placement
  • Email Infrastructure
  • Spam Prevention
  • Warmup Network
  • Cold Email

What is Warmbox

Warmbox is an email warmup service designed for sales and marketing teams running cold email campaigns who need to build sender reputation. It provides automated warmup gradually ramping email sending volume over 2-4 weeks, warmup network engaging with thousands of real inboxes naturally, spam folder removal automatically moving warmup emails from spam to inbox, deliverability monitoring tracking inbox placement percentages, and multi-provider support warming Google, Microsoft, custom domains. People use Warmbox because new email accounts land in spam without warmup, automated warming saves manual work, and costs $15-69/mo per account preventing campaigns from failing due to poor deliverability.

Warmbox shines in teams launching cold email campaigns, agencies warming client accounts, sales ops managing email infrastructure, and companies scaling outbound email volume. Teams see results fast, often achieving 90-95% inbox placement within 2-4 weeks of warmup.

Ideal Customer Profile

Warmbox is recommended for sales and marketing teams running cold email campaigns who need to warm up email accounts and maintain sender reputation.

Company Size:

  • Startups
  • SMBs

Key Features

  • Automated warmup gradually ramping email volume over 2-4 weeks
  • Warmup network engaging with thousands of real inboxes naturally
  • Spam folder removal automatically moving emails from spam to inbox
  • Deliverability monitoring tracking inbox placement percentages daily
  • Multi-provider support warming Google, Microsoft, custom SMTP domains
  • Continuous warmup maintaining reputation even during active campaigns

Best Use Case For Warmbox

Warmbox is an email warmup service designed for teams running cold email who need sender reputation. It provides automated warmup, warmup network, spam folder removal, deliverability monitoring, and multi-provider support. People use Warmbox because warmup prevents spam placement and costs $15-69/mo per account.

Warmbox shines in cold email campaigns, agencies warming client accounts, sales ops managing infrastructure, and companies scaling outbound. Teams achieve 90-95% inbox placement within 2-4 weeks.

Pricing

Warmbox offers subscription plans starting at $15/month per email account for Basic warmup, scaling to $69/month per account for Premium with advanced features. All plans include automated warmup, network engagement, spam removal, monitoring. 7-day free trial available.

Starting Price: $15/month per email account Trial: Available, 7 days of trial

Basic

$15 Per Email Account, Per Month

Automated warmup, warmup network, spam folder removal, basic deliverability monitoring

Standard

$39 Per Email Account, Per Month

All Basic features, advanced warmup settings, priority network engagement, detailed analytics

Premium

$69 Per Email Account, Per Month

All Standard features, white-glove support, custom warmup schedules, dedicated deliverability consulting

What are Warmbox alternatives?

How simple is Warmbox setup?

Complexity: Beginner

Warmbox's implementation begins with account creation, email connection, and warmup start within 15 minutes. For full deployment, expect 2-4 weeks for email accounts to warm up fully, initial setup connecting email via SMTP or OAuth, configuring warmup settings and volume ramps, enabling spam folder removal, monitoring deliverability progress, and maintaining continuous warmup during campaigns.

Frequently Asked Questions

How to use Warmbox?

Create account, connect email accounts via SMTP or OAuth, configure warmup settings (volume, ramp schedule), enable spam folder removal, start automated warmup, monitor deliverability dashboard, wait 2-4 weeks for full warmup, launch cold email campaigns, maintain continuous warmup during active sending.

How much is Warmbox?

Warmbox offers plans from $15 to $69/month per email account based on warmup features (basic vs advanced settings, priority engagement, custom schedules, dedicated support), with all plans including automated warmup and monitoring.

Why choose Warmbox?

Warm email accounts in 2-4 weeks achieving 90-95% inbox placement, prevent cold emails from landing in spam through gradual reputation building, automate warmup eliminating manual email exchanges, remove warmup emails from spam folders automatically improving reputation, maintain deliverability at $15-69/mo per account vs thousands in lost pipeline from spam placement, scale cold email confidently with proven warmup.

How does Warmbox work?

Warmbox provides automated email warmup service, connects to email accounts via SMTP or OAuth, gradually increases sending volume over 2-4 weeks, engages with warmup network of thousands of real inboxes, sends and receives natural email conversations, removes warmup emails from spam folders automatically, monitors inbox placement rates tracking deliverability, then delivers warmed email accounts ready for cold outreach.

Is Warmbox free?

Warmbox offers a 7-day free trial with access to automated warmup, warmup network, spam removal, and deliverability monitoring but no permanent free tier. Plans start at $15/month per email account.

How does Warmbox help?

  • Warm email accounts in 2-4 weeks achieving 90-95% inbox placement
  • Prevent cold emails from landing in spam through reputation building
  • Automate warmup eliminating manual email exchange work
  • Remove warmup emails from spam folders automatically
  • Maintain deliverability at $15-69/mo per account
  • Scale cold email confidently with proven warmup process

Visit Website: https://warmbox.ai

Pricing Summary

From: $15/month per email account Trial: Available, 7 days of trial

Who is Warmbox for?

  • Startups
  • SMBs

Is Warmbox easy to use?

Complexity: Beginner

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