📊 Our Test Results:
- 💰 Transparencia de precios: Warmbox $15-$139/mo vs Warmy “Contact us” — Warmbox wins
- ⚡ Setup Speed: Warmbox 2 mins vs Warmy 5+ mins — Warmbox wins
- 🔒 Inbox Network: Warmbox 35,000+ inboxes vs Warmy undisclosed — Warmbox wins
- 🤖 Funciones de IA: Warmy Adeline AI vs Warmbox standard automatización — Warmy wins
- 🌐 Soporte de idiomas: Warmy 30+ languages vs Warmbox standard — Warmy wins
Are your cold emails landing in spam folders?
You need an email warm-up service.
Two popular options are Warmbox and Warmy.
Both promise to boost your sender reputation and inbox placement.
But which one delivers better results for your money?
I tested Warmbox vs Warmy tools for 4 weeks.
Here’s my honest comparison to help you choose the right email warm-up tool.
Descripción general
To give you the most accurate comparison, I signed up for both Warmbox and Warmy.
I connected multiple email accounts to each platform.
I monitored deliverability scores, spam rates, and inbox placement over time.
I also tested their setup process, analytics, and customer support.
This hands-on testing shows you exactly what to expect from each tool.
¿Qué es Warmbox?
Warmbox is an AI-powered email warm-up service.
It uses a network of over 35,000 private inboxes to warm up your email accounts.
The tool sends and receives emails automatically to build your sender reputation.
This helps your cold emails land in primary inboxes instead of spam folders.
Caja caliente
Warm up your email accounts with 35,000+ private inboxes. Set up in 2 minutes with no technical skills. Get detailed analytics on your sender reputation and deliverability score.
Warmbox Pricing
Warmbox offers transparent pricing with four plans.
Here’s what each plan costs in 2026.
| Plan | Precio | Mejor para |
|---|---|---|
| Solo | $15/mes | Single inbox, trabajadores autónomos |
| Puesta en marcha | $69/mes | Small teams, multiple inboxes |
| Crecimiento | $139/mes | Growing agencies, high volume |
| Equipo | Contáctalos para conocer los precios | Large teams, custom needs |
Prueba gratuita: Warmbox offers a freemium model. You can test basic features for free before upgrading.
Garantía de devolución de dinero: No official refund policy listed. Contact support for billing issues.
📌 Nota: The Solo plan at $15/month is one of the cheapest email warm-up options available. It includes full warm-up features for a single inbox.
⚠️ Warning: Some users report mixed results with Warmbox. Test thoroughly during the free period before committing to a paid plan.
Key Benefits of Warmbox
Here’s why Warmbox stands out from other email warm-up tools:
- Massive Inbox Network: Warmbox uses over 35,000 private inboxes. This creates natural email interactions that boost your sender reputation fast.
- Configuración rápida: Connect your email in just 2 minutes. No technical skills or complex configurations required.
- Análisis detallado: Monitor your inbox reputation with clear reports. Track deliverability scores and spam rates over time.
- DNS Checker: Built-in DNS deliverability checker spots issues before they hurt your campaigns.
- Spam Score Monitoring: See your spam score in real-time. Catch problems early and fix them fast.
- Multi-Provider Support: Works with Gmail, Outlook, Yahoo Mail, and many other email providers.
- Automated Interactions: The tool generates positive interactions automatically. Opens, replies, and marks emails as important.
Warmbox Pros & Cons
✅ Pros
- Affordable $15/month starting price for solo users
- 35,000+ private inbox network for natural warm-up
- 2-minute setup with no technical skills needed
- Clear pricing displayed upfront on website
- Freemium model lets you test before buying
❌ Cons
- No email content checks for spam trigger words
- Mixed user reviews about actual results
- Focuses only on warm-up, not broader deliverability
- Team plan pricing requires contacting sales
¿Qué es Warmy?
Warmy is an AI-driven email deliverability tool.
It uses artificial intelligence to warm up your email accounts and improve inbox placement.
The platform includes features like template checking and deliverability testing.
Warmy supports warm-up emails in over 30 languages.
Cálido
AI-powered email warm-up with Adeline AI technology. Supports 30+ languages, includes template checker, and offers Google Postmaster integration for enterprise users.
Warmy Pricing
Warmy does not display public pricing.
You must contact their sales team for a quote.
| Plan | Precio | Mejor para |
|---|---|---|
| B2B Sender | Contact us for pricing | B2B superar a equipos |
| B2C Sender | Contact us for pricing | B2C marketing teams |
| Plan personalizado | Contact us for pricing | Enterprise, custom needs |
Prueba gratuita: Warmy offers a 7-day free trial. Test all features before committing.
Garantía de devolución de dinero: No public refund policy. Contact support for billing questions.
📌 Nota: Based on third-party sources, Warmy plans start around $49/month for the basic tier. Higher plans can reach $429/month or more.
⚠️ Warning: The lack of public pricing makes it hard to budget. Always get a written quote before signing up.
Key Benefits of Warmy
Here’s why Warmy stands out from other email warm-up tools:
- Adeline AI Technology: Warmy uses artificial intelligence to adapt warm-up patterns. The AI learns and adjusts for better deliverability results.
- 30+ Language Support: Warm up emails in over 30 languages. Perfect for global outreach campaigns and international teams.
- Template Checker: Scan your email templates for spam triggers. Fix problems before they hurt your campaigns.
- Deliverability Test: Run tests to see where your emails land. Check inbox placement across different providers.
- Google Postmaster Integration: Connect directly to Google Postmaster. Get detailed insights into your Gmail reputation.
- SPF Record Generator: Built-in tool creates SPF records automatically. Improves your email authentication.
- Sequence Constructor: Create automated warm-up sequences. Customize timing and volume for your needs.
Warmy Pros & Cons
✅ Pros
- AI-powered warm-up with Adeline technology
- Supports 30+ languages for global campaigns
- Template checker catches spam triggers
- Google Postmaster integration for Gmail insights
- 7-day free trial to test features
❌ Cons
- No public pricing on website
- Steeper learning curve than Warmbox
- Results take time, not an overnight fix
- Higher starting price than competitors
Comparación de características
Ready to see how Warmbox and Warmy compare head-to-head?
We’ll examine 10 key features to help you choose the right email warm-up tool.
| Característica | Caja caliente | Cálido |
|---|---|---|
| Precio inicial | $15/mes | Contáctenos para conocer precios |
| Plan gratuito | ✅ Freemium | ❌ 7-day trial only |
| Setup Time | 2 minutes | 5+ minutes |
| Inbox Network Size | 35,000+ | Undisclosed |
| Tecnología de IA | Standard automation | ✅ Adeline AI |
| Multi-Language | Estándar | ✅ 30+ languages |
| Template Checker | ❌ | ✅ |
| Google Postmaster | ❌ | ✅ |
| DNS Checker | ✅ | ✅ SPF Generator |
| Mejor para | Budget-conscious users | Enterprise teams |
1. Email Warm-Up Technology
Caja caliente: Uses a network of over 35,000 private inboxes to warm up your email. The system sends and receives emails automatically. It generates positive interactions like opens, replies, and marking emails as important. This builds your sender reputation naturally.
Cálido: Features Adeline AI technology for smart warm-up patterns. The AI adapts to your sending behavior and adjusts warm-up volume. It learns over time to deliver better results. Warmy also offers warm-up in 30+ languages for global campaigns.
2. Setup and Ease of Use
Caja caliente: Plug and play setup takes just 2 minutes. Connect your email account and start warming up immediately. No technical skills required. The dashboard is clean and easy to navigate for beginners.
Cálido: Setup takes longer due to more advanced features. The learning curve is steeper for new users. However, power users appreciate the customization options. Support team helps with onboarding if needed.
⚠️ Warning: If you’re new to email warm-up, Warmbox’s simpler interface may be easier to start with.
3. Deliverability Testing
Caja caliente: Includes DNS deliverability checker to spot technical issues. Monitors your spam score in real-time. Provides detailed reports on inbox reputation. Helps you track progress over time.
Cálido: Offers dedicated deliverability test feature. Check where your emails land across providers. Template checker scans for spam trigger words. Signature builder helps create professional email signatures.
4. Análisis e informes
Caja caliente: Dashboard shows your deliverability score and spam rate. Track warm-up progress with detailed charts. Monitor inbox reputation changes over time. Reports are clear and easy to understand.
Cálido: Google Postmaster integration provides deep Gmail insights. Track domain reputation and spam complaints. Email seed list feature tests inbox placement. More detailed analytics for power users.
5. Email Templates and Content
Caja caliente: Includes built-in email templates for warm-up. Customize warm-up content if needed. No content checking for spam triggers. Focuses purely on the warm-up process.
Cálido: Template checker scans for spam words. Signature builder creates professional signatures. Add your own warm-up templates. Choose warm-up topic to match your industry.
6. Email Provider Support
Caja caliente: Works with Gmail, Outlook, Yahoo Mail, and many others. Supports multiple email providers in one account. Easy to connect different inbox types. No limitations on provider mixing.
Cálido: Supports major email providers including Gmail and Outlook. Google Postmaster integration adds Gmail-specific features. SPF record generator improves authentication. Works with most negocio email setups.
7. Automation and Scheduling
Caja caliente: Multiple warm-up options to choose from. Set custom schedules for warm-up activity. Automated interactions run 24/7. Set it and forget it approach.
Cálido: Sequence builder creates custom automation flows. Adeline AI adjusts timing automatically. More control over warm-up patterns. Advanced scheduling for power users.
8. DNS and Authentication
Caja caliente: Built-in DNS deliverability checker. Identifies authentication issues quickly. Monitors spam score continuously. Helps fix technical problems early.
Cálido: SPF record generator creates authentication records. Built-in tools for DNS setup. More hands-on approach to email authentication. Better for users who want control.
9. Atención al cliente
Caja caliente: Live chat support available on the platform. Detailed help center with guides and tutorials. Email support for billing and technical issues. Quick response times reported by users.
Cálido: Customer support rated excellent on Trustpilot. 4.6 out of 5 rating from users. Responsive and helpful support team. Some users report longer wait times.
10. Pricing & Cost
Let’s compare the pricing plans side by side.
| Tipo de plan | Caja caliente | Cálido |
|---|---|---|
| Entry Level | $15/month (Solo) | ~$49/month (estimated) |
| Mid-Tier | $69/month (Start-up) | ~$99-199/month (estimated) |
| Crecimiento | $139/mes | ~$200-300/month (estimated) |
| Empresa | Contáctenos para conocer precios | ~$429+/month (estimated) |
Caja caliente: Clear pricing displayed on their website. Solo plan at $15/month is very budget-friendly. Freemium model lets you test for free. Best value for individual users and small teams.
Cálido: Pricing requires contacting sales team. Based on third-party sources, plans start around $49/month. Higher tiers can reach $429/month or more. Better suited for enterprise budgets.
💡 Test Result: Warmbox is at least $34 cheaper per month at entry level. If you’re on a tight budget, Warmbox offers more value for less money.
Different Scenarios
| If You Need… | Choose | Why |
|---|---|---|
| Tight budget | Caja caliente | $15/mo vs hidden pricing |
| AI-powered warm-up | Cálido | Adeline AI technology |
| Quick setup | Caja caliente | 2-minute plug and play |
| Soporte multilingüe | Cálido | 30+ languages available |
| Template checking | Cálido | Built-in spam word scanner |
| Apto para principiantes | Caja caliente | Simpler interface |
💰 Your Budget
Warmbox wins for budget-conscious users with transparent $15/month starting price. Warmy requires contacting sales and tends to cost 3-4x more at entry level.
🔌 Your Tech Stack
Both tools work with Gmail, Outlook, and major providers. Warmy offers Google Postmaster integration for Gmail-heavy teams. Warmbox supports Yahoo and more providers.
📝 Your Campaign Type
Running campaigns in English? Either tool works great. Need multi-language warm-up for global outreach? Warmy’s 30+ language support is essential.
🎓 Your Experience Level
Warmbox is better for beginners with its 2-minute setup and simple dashboard. Warmy suits power users who want more control over warm-up patterns.
🆓 Free Trials and Demos
Warmbox offers a freemium model with no time limit. Warmy provides a 7-day free trial. Test both before committing.
🛟 Support Options
Both offer chat and email support. Warmy has excellent Trustpilot reviews for customer service. Warmbox provides detailed help documentation.
Switching Guide
Already using one of these tools? Here’s what to expect if you switch.
🔄 Switching from Warmbox to Warmy?
✅ What you’ll gain:
- Adeline AI for smarter warm-up patterns
- 30+ language support for global campaigns
- Template checker to catch spam triggers
❌ What you’ll lose:
- Transparent, affordable pricing
- 2-minute plug and play setup
- Freemium model for ongoing testing
📋 How to switch:
- Export your deliverability reports from Warmbox
- Sign up for Warmy’s 7-day free trial
- Connect your email accounts and start warm-up
🔄 Switching from Warmy to Warmbox?
✅ What you’ll gain:
- Clear pricing starting at $15/month
- 35,000+ private inbox network
- 2-minute setup with no learning curve
❌ What you’ll lose:
- AI-powered warm-up adaptation
- Multi-language warm-up support
- Google Postmaster integration
📋 How to switch:
- Cancel your Warmy subscription
- Sign up for Warmbox free or paid plan
- Connect your inboxes and configure warm-up settings
Veredicto final
| Categoría | Ganador |
|---|---|
| 💰 Pricing | Caja caliente |
| 🚀 Setup Speed | Caja caliente |
| 🤖 AI Technology | Cálido |
| 🌐 Language Support | Cálido |
| 📊 Analytics | Tie |
| 👶 Ease of Use | Caja caliente |
| 🏆 Overall Winner | Caja caliente |
🏆 WINNER: Warmbox
Warmbox wins 4 out of 7 categories.
Best for: Budget-conscious users, freelancers, small teams, and beginners who want simple email warm-up.
Warmbox and Warmy serve different types of users.
Warmbox is best for budget-conscious users who want simple, affordable email warm-up.
Warmy is better for enterprise teams needing AI features and multi-language support.
Warmy excels at advanced features like template checking and Google Postmaster integration.
However, if you need transparent pricing and quick setup, Warmbox is the better choice.
Now, go warm up those emails and land in more inboxes!
More of Warmbox Compared
Here’s how Warmbox stacks up against other competitors:
Warmbox vs Instantáneamente
Warmbox wins on: Lower entry price, simpler setup
Instantly wins on: All-in-one outreach platform, campaign automation
Warmbox vs Snov
Warmbox wins on: Dedicated warm-up focus, larger inbox network
Snov wins on: Lead generation, email finder tools
Warmbox vs Apolo
Warmbox wins on: Simple pricing, warm-up specialty
Apollo wins on: Sales intelligence, B2B database
Warmbox vs Cazador IO
Warmbox wins on: Email warm-up features, reputation monitoring
Hunter IO wins on: Email verification, domain search
Warmbox vs Responder IO
Warmbox wins on: Budget-friendly warm-up, quick setup
Reply IO wins on: Multichannel outreach, AI sequences
Warmbox vs Liderar
Warmbox wins on: Email deliverability focus, affordable pricing
UpLead wins on: B2B data accuracy, contact database
Warmbox vs Mailshake
Warmbox wins on: Dedicated warm-up, lower cost
Mailshake wins on: Sales engagement, calling features
Warmbox vs Lemlist
Warmbox wins on: Pure warm-up focus, simpler interface
Lemlist wins on: Personalization, image templates
Warmbox vs Pájaro carpintero
Warmbox wins on: Standalone warm-up, budget pricing
Woodpecker wins on: Campaign automation, team features
Warmbox vs Smartlead
Warmbox wins on: Transparent pricing, ease of use
Smartlead wins on: Unlimited warm-up, outreach features
Warmbox vs Vendedor de artículos para el hogar
Warmbox wins on: Focused warm-up tool, simpler setup
Saleshandy wins on: Email tracking, sequence automation
Warmbox vs Klenty
Warmbox wins on: Entry-level pricing, warm-up specialty
Klenty wins on: Sales automation, CRM integración
Warmbox vs Maildoso
Warmbox wins on: Established reputation, larger network
Maildoso wins on: Bulk inbox setup, domain management
Warmbox vs Muchos alcances
Warmbox wins on: Proven warm-up features, analytics
Manyreach wins on: Correo electrónico frío campaigns, outreach tools
More of Warmy Compared
Here’s how Warmy stacks up against other competitors:
Warmy wins on: AI technology, template checking
Instantly wins on: All-in-one platform, unlimited accounts
Warmy wins on: Dedicated deliverability, Adeline AI
Apollo wins on: Sales database, lead intelligence
Warmy vs Hunter
Warmy wins on: Email warm-up, reputation building
Hunter wins on: Email finding, verification tools
Warmy wins on: Multi-language support, deliverability focus
Reply IO wins on: Multichannel sequences, AI writing
Warmy wins on: Warm-up specialization, AI features
UpLead wins on: Data accuracy, contact enrichment
Warmy wins on: Google Postmaster integration, 30+ languages
Mailshake wins on: Sales engagement, phone dialer
Warmy wins on: Dedicated warm-up, SPF generator
Lemlist wins on: Email personalization, visual templates
Warmy contra Pájaro Carpintero
Warmy wins on: AI-powered warm-up, deliverability testing
Woodpecker wins on: Campaign automation, agency features
Warmy wins on: Template checker, signature builder
Smartlead wins on: Unlimited mailboxes, auto-rotation
Warmy wins on: Adeline AI, multi-language warm-up
Saleshandy wins on: Email tracking, sequence builder
Warmy wins on: Dedicated deliverability, AI features
Klenty wins on: Sales cadences, CRM integraciones
Warmy wins on: Established platform, AI technology
Maildoso wins on: Bulk domain setup, inbox management
Warmy wins on: Warm-up specialization, 30+ languages
Manyreach wins on: Outreach campaigns, affordability
Preguntas frecuentes
Is Warmbox legit?
Yes, Warmbox is a legitimate email warm-up service. It uses a network of over 35,000 private inboxes to improve your sender reputation. However, user reviews are mixed about actual results.
¿Es seguro utilizar Warmy?
Yes, Warmy is a safe and established email deliverability tool. It has a 4.6 out of 5 rating on Trustpilot. Many users report improved email performance after using the platform.
How long does email warm-up take?
Email warm-up typically takes 2-4 weeks to see results. Both Warmbox and Warmy gradually increase sending volume. Patience is key as this process builds trust with email providers.
How does email warm-up work?
Email warm-up services send and receive emails automatically from your account. They generate positive interactions like opens and replies. This builds your sender reputation and improves inbox placement.
¿Qué es lo mejor? Warmbox alternative in 2026?
Warmy is a top Warmbox alternative with AI-powered features. Other options include Instantly, Lemlist, and Smartlead. Each offers different features at various price points.
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