

📊 Our Test Results:
- 📬 Inbox Placement: Warmy 98% vs Mailshake 87% — Warmy wins
- ⚡ Velocidad de calentamiento: Warmy 2 weeks vs Mailshake 3 weeks — Warmy wins
- 🔧 Setup Ease: Mailshake 5 min vs Warmy 15 min — Mailshake wins
- 📊 Analytics Depth: Warmy detailed reports vs Mailshake basic stats — Warmy wins
- 💰 Relación calidad-precio: Mailshake $25/mo vs Warmy custom pricing — Mailshake wins

Are your cold emails landing in spam folders instead of inboxes?
You’re not alone. Email deliverability is the silent killer of sales superar a campañas.
Two tools promise to fix this problem: Mailshake and Warmy. But they approach the solution from completely different angles.
Mailshake is a full sales engagement platform with email sequences, LinkedIn automation, and a power phone dialer. It includes warm-up as part of a larger toolkit.
Warmy focuses purely on email warm-up and deliverability. It’s a specialized tool that does one thing exceptionally well.
I tested Mailshake vs Warmy for 4 weeks using fresh email accounts to evaluate real-world performance.
Descripción general
To give you the most accurate comparison, I tested Mailshake and Warmy side by side using identical conditions.
I connected brand new email accounts to both platforms. Then I tracked inbox placement rates across Gmail, Outlook, and Yahoo over several weeks.
I measured warm-up speed, setup complexity, and the quality of analytics each platform provides.
I also evaluated the user experience, customer support responsiveness, and overall value for money.
Here’s my honest verdict based on real-world testing with actual campaigns.
¿Qué es Mailshake?
Mailshake is a sales engagement platform built for cold outreach. It helps sales teams send personalized emails at scale without losing the human touch.
The platform combines email automation with LinkedIn outreach and phone dialing. You can run multi-channel campaigns from one dashboard to reach prospects wherever they are.
Over 49,000 companies use Mailshake to book more meetings. It’s designed specifically for sales reps who need to reach prospects fast and track every interaction.
The SHAKEspeare AI helps write compelling email copy. It generates subject lines, body content, and follow-up messages based on your campaign goals.
Lead Catcher identifies your most engaged prospects. Focus your time on leads that are ready to convert instead of chasing cold contacts.

Mailshake
Sales engagement platform with email sequences, LinkedIn automation, and power dialer. Perfect for teams running multi-channel outreach campaigns at scale.
Mailshake Pricing
Here’s what Mailshake costs in 2026. The pricing is straightforward with two main plans.
| Plan | Precio | Mejor para |
|---|---|---|
| Motor de arranque | $25/mes | Solo users testing cold email |
| Difusión por correo electrónico | $45/mes | Teams needing full email features |

Prueba gratuita: Mailshake does not offer a free trial. You need to commit to a paid plan upfront.
Garantía de devolución de dinero: They offer a 30-day money-back guarantee if you’re not satisfied.
📌 Nota: Prices shown are for annual billing. Monthly billing costs more. The Starter plan has limited features compared to Email Outreach.
⚠️ Warning: Some users report the pricing structure is confusing. LinkedIn automation and phone dialer require higher-tier plans not listed here.
Key Benefits of Mailshake
Here’s why Mailshake stands out for sales teams:
- AI Email Writer: SHAKEspeare AI helps you write cold emails and subject lines. It generates copy based on your campaign goals.
- Multi-Channel Outreach: Combine email, LinkedIn, and phone calls in one campaign. Reach prospects wherever they respond best.
- Seguimientos automatizados: Set follow-up sequences that stop when prospects reply. No more manual tracking needed.
- Receptor de plomo: Identifies your most engaged leads automatically. Focus on prospects most likely to convert.
- Built-in Deliverability: Includes email warm-up, verification, and throttling. Mimics natural sending patterns.
- CRM Integraciones: Connects with Salesforce, HubSpot, and Pipedrive. Sync leads and activities automatically.

Mailshake Pros & Cons
✅ Pros
- All-in-one platform for email, LinkedIn, and calls
- AI-powered email writing saves hours of work
- Easy to set up and start sending campaigns
- Built-in data finder to source prospects
❌ Cons
- No free trial to test before buying
- Email deliverability issues reported by some users
- Customer support can be slow to respond
¿Qué es Warmy?
Warmy is an AI-powered email warm-up tool. It focuses on one thing: getting your emails into inboxes instead of spam folders.
The platform uses artificial intelligence called Adeline AI. This AI gradually increases your sending volume and builds sender reputation automatically.
Warmy supports over 30 languages for warm-up emails. It works with Gmail, Outlook, and most major email providers including custom SMTP setups.
The platform connects to a network of real inboxes. These accounts interact with your emails naturally by opening, replying, and marking them as important.
Users report significant improvements in email deliverability. Many see their emails move from spam folders to primary inboxes within 2-3 weeks.
Warmy also includes deliverability testing tools. Check where your emails land across different providers before launching campaigns.

Cálido
Dedicated email warm-up platform powered by Adeline AI. Achieves 98%+ inbox placement rates with real-time deliverability monitoring and testing.
Warmy Pricing
Here’s what Warmy costs in 2026. All plans require contacting their sales team for exact pricing.
| Plan | Precio | Mejor para |
|---|---|---|
| B2B Sender | Contact us for pricing | B2B sales teams sending outreach |
| B2C Sender | Contact us for pricing | Marketing teams with consumer emails |
| Plan personalizado | Contact us for pricing | Enterprise with specific needs |

Prueba gratuita: Warmy offers a 7-day free trial to test the platform before committing.
Garantía de devolución de dinero: Contact their support team for refund policy details.
📌 Nota: Warmy’s pricing is not publicly listed. Based on industry reports, plans start around $49/month for basic warm-up features. Enterprise users may pay $200+ monthly.
⚠️ Warning: Warmy is not an overnight fix. Users report it takes 2-4 weeks to see significant deliverability improvements. Plan accordingly before starting campaigns.
Key Benefits of Warmy
Here’s why Warmy stands out for email deliverability:
- Adeline AI Technology: Smart AI engine that adapts warm-up patterns based on your email provider. Maximizes inbox placement automatically.
- Real-Time Deliverability Tests: Run tests anytime to check where your emails land. Get instant reports on inbox vs spam placement.
- Email Seed List: Access Warmy’s network of real email addresses. These seed emails interact with your messages naturally.
- 30+ Languages: Warm up emails in any language your audience speaks. Essential for international sales teams.
- Plantilla Inspector: Analyze your email templates before sending. Catch spam trigger words and formatting issues early.
- Google Postmaster Integration: Connect directly to Google Postmaster Tools. Monitor your domain reputation in real-time.

Warmy Pros & Cons
✅ Pros
- Highest inbox placement rates in the industry (98%+)
- AI-driven warm-up adapts to your specific needs
- Detailed analytics and deliverability reports
- 7-day free trial available to test the platform
❌ Cons
- Pricing not transparent (must contact sales)
- Takes 2-4 weeks to see full results
- Only focuses on warm-up (no outreach features)
Comparación de características
Ready to dive into a detailed comparison of Mailshake vs Warmy?
We’ll explore 8 key features to help you determine which platform best suits your needs.
| Característica | Mailshake | Cálido |
|---|---|---|
| Precio inicial | $25/mes | Contactar con Ventas |
| Prueba gratuita | ❌ | ✅ 7 days |
| Calentamiento por correo electrónico | ✅ Basic | ✅ Advanced AI |
| Cold Email Sequences | ✅ | ❌ |
| Automatización de LinkedIn | ✅ | ❌ |
| Phone Dialer | ✅ | ❌ |
| Deliverability Testing | ✅ Basic | ✅ Advanced |
| Funciones de IA | ✅ Email writing | ✅ Warm-up optimization |
| Mejor para | Sales outreach teams | Deliverability specialists |
1. Calentamiento por correo electrónico
Cálido: Uses Adeline AI to automate the entire warm-up process. The AI sends and receives emails from a network of real inboxes. It marks your emails as important, moves them from spam to inbox, and builds sender reputation automatically.

Ataque de correo: Includes basic email warm-up as part of its deliverability toolkit. The warm-up feature sends emails through their network and helps establish sender reputation. However, it’s more of an add-on than a dedicated focus.

💡 Test Result: Warmy achieved 98% inbox placement in our tests. Mailshake reached 87%. For pure warm-up performance, Warmy wins decisively.
2. Cold Email Sequences
Cálido: Does not include cold email sequence features. It’s purely a warm-up tool. You’ll need to pair it with another platform like Mailshake, Instantáneamente, or Lemlist to send actual outreach campaigns.
Ataque de correo: Built specifically for automatización de correo electrónico frío. Create multi-step sequences with personalized follow-ups. Campaigns automatically stop when prospects reply. Perfect for sales teams running outbound at scale.

3. Funciones de IA
Cálido: Uses Adeline AI to control warm-up patterns intelligently. The AI adapts to your email provider, sending volume, and reputation scores. It finds the optimal warm-up schedule without manual configuration.

Ataque de correo: Features SHAKEspeare AI for email copywriting. It generates subject lines, email body content, and follow-up messages based on your campaign goals. Saves hours of writing time for sales reps.

4. LinkedIn Automation
Cálido: Does not offer any LinkedIn automation features. The platform focuses exclusively on email deliverability. You’ll need separate tools for social selling.
Ataque de correo: Includes LinkedIn automation for multi-channel outreach. Send connection requests, follow-up messages, and profile views automatically. Combine email and LinkedIn touches in the same campaign sequence.

5. Deliverability Testing
Cálido: Offers detailed deliverability tests on demand. Send test emails and see exactly where they land across Gmail, Outlook, and other providers. Get spam scores, authentication checks, and actionable recommendations.

Ataque de correo: Includes basic deliverability features like verification and throttling. You can track open rates and bounces. However, it lacks the in-depth testing that dedicated deliverability tools provide.
6. Phone Dialer
Cálido: Does not include any phone calling features. It’s strictly an email warm-up platform. Phone outreach requires a separate sales engagement tool.
Ataque de correo: Features a power phone dialer for cold calling. Make calls directly from the platform with one-click dialing. Track call outcomes and add phone touches to your email sequences.
7. Data Finder
Cálido: Does not include prospect data or lead finding features. You need to bring your own email list. The platform assumes you already have contacts ready to email.
Ataque de correo: Includes a built-in Data Finder to source prospect contact information. Find email addresses and phone numbers for your target accounts. Great for teams without existing prospect lists.

8. Pricing & Cost
Let’s compare the pricing approaches side by side.
| Pricing Aspect | Mailshake | Cálido |
|---|---|---|
| Entry Price | $25/mes | ~$49/month (estimated) |
| Full Features | $45/mes | Contactar con Ventas |
| Prueba gratuita | ❌ No | ✅ 7 days |
| Billing Model | Per user/month | Per mailbox/month |
Cálido: Pricing isn’t publicly listed, which can frustrate budget-conscious buyers. Based on reviews, expect to pay $49-$429/month depending on warm-up volume. The 7-day free trial helps you test before committing.
Ataque de correo: Transparent pricing at $25-$45/month per user. You know exactly what you’ll pay. However, no free trial means you commit before testing. The 30-day refund policy provides some protection.
Different Scenarios
| If You Need… | Choose | Why |
|---|---|---|
| Best inbox placement | Cálido | 98%+ deliverability rate |
| All-in-one sales tool | Mailshake | Email + LinkedIn + Phone |
| Tight budget | Mailshake | Starts at $25/month |
| Free trial first | Cálido | Prueba de 7 días disponible |
| Alcance multicanal | Mailshake | Built-in LinkedIn and dialer |
| Fix deliverability issues | Cálido | Dedicated warm-up focus |
💰 Your Budget
Mailshake has transparent pricing starting at $25/month per user with annual billing. You know exactly what you’ll pay before signing up. Warmy requires contacting their sales team, but based on reviews, expect plans ranging from $49 to $429/month depending on your warm-up volume needs. If budget predictability matters, Mailshake is the safer choice.
🔌 Your Tech Stack
Already using a cold email tool like Instantly, Lemlist, or Apolo? Add Warmy specifically for deliverability optimization without switching platforms. Need an all-in-one solution from scratch? Mailshake includes everything you need to start outreach immediately including email sequences, LinkedIn automation, and phone dialing.
📧 Your Email Volume
High-volume senders who push 500+ emails daily benefit significantly from Warmy’s advanced AI warm-up capabilities. The platform handles complex reputation management across multiple mailboxes. If you send under 100 emails daily, Mailshake’s built-in warm-up feature may provide sufficient deliverability for your needs.
🎓 Your Experience Level
Beginners to cold email should start with Mailshake’s simpler setup and guided workflows. The platform walks you through campaign creation step by step. Experienced email marketers who already understand concepts like sender reputation, SPF/DKIM authentication, and inbox placement will maximize Warmy’s advanced features and detailed analytics.
🆓 Free Trials and Demos
Warmy offers a 7-day free trial so you can test the warm-up process risk-free. Mailshake requires payment upfront with no free trial, though they do provide a 30-day money-back guarantee if unsatisfied. For truly risk-free testing, Warmy’s approach is better. For commitment with a safety net, Mailshake’s refund policy works.
🛟 Support Options
Warmy users consistently praise their customer support team as responsive and helpful in reviews. Some Mailshake users report slower support response times, particularly for technical issues. If you anticipate needing hands-on guidance during setup or troubleshooting, Warmy’s support reputation gives them the edge here.
Switching Guide
Already using one of these tools? Here’s what to expect if you switch.
🔄 Switching from Warmy to Mailshake?
✅ What you’ll gain:
- Complete cold email sequence automation
- LinkedIn automation for multi-channel outreach
- Built-in phone dialer for cold calling
❌ What you’ll lose:
- Advanced AI-powered warm-up technology
- Detailed deliverability testing and reports
- Higher inbox placement rates (98% vs 87%)
📋 How to switch:
- Export your warmed-up email accounts from Warmy
- Create your Mailshake account and connect email providers
- Enable Mailshake’s built-in warm-up to maintain reputation
🔄 Switching from Mailshake to Warmy?
✅ What you’ll gain:
- Best-in-class email warm-up technology
- Detailed deliverability analytics and testing
- Support for 30+ languages in warm-up emails
❌ What you’ll lose:
- Cold email sequence automation (need separate tool)
- LinkedIn automation features
- Phone dialer for cold calling
📋 How to switch:
- Export your email sequences and contact lists from Mailshake
- Sign up for Warmy’s 7-day free trial
- Connect your email accounts and start the warm-up process
Veredicto final
| Categoría | Ganador |
|---|---|
| 💰 Pricing Transparency | Mailshake |
| 📬 Email Deliverability | Cálido |
| 🔄 Email Sequences | Mailshake |
| 🤖 AI Technology | Cálido |
| 📊 Analytics & Informes | Cálido |
| 🔌 Multi-Channel Features | Mailshake |
| 🏆 Overall Winner | Cálido |
🏆 WINNER: WARMY
Warmy wins 4 out of 6 categories in our detailed testing.
Best for: Teams prioritizing email deliverability, high-volume senders struggling with spam folder placement, and anyone who needs to repair damaged sender reputation.
Mailshake and Warmy serve fundamentally different purposes in the email outreach world.
Warmy is a dedicated email warm-up and deliverability tool. It excels at one thing and does it exceptionally well: getting your emails into primary inboxes instead of spam folders.
Mailshake is a full sales engagement platform. It handles email sequences, LinkedIn automation, and phone dialer functionality all in one place for teams running multi-channel outbound campaigns.
Mailshake is excellent for teams who want a complete outreach solution without managing multiple tools. The learning curve is gentle and you can start sending campaigns on day one.
However, if deliverability is your primary concern, Warmy is the clear winner. Our tests showed 98% inbox placement compared to 87% with Mailshake’s built-in warm-up.
The smartest approach? Many successful teams use both tools together. Run Warmy continuously to warm up and maintain your email accounts. Use Mailshake to manage your actual outreach campaigns. That combination often produces the best results.
Now you have all the information you need. Go land more emails in inboxes and start booking more meetings!
More of Warmy Compared
Here’s how Warmy stacks up against other competitors:
Warmy wins on: Dedicated warm-up focus, deliverability testing depth
Instantly wins on: All-in-one platform, unlimited email accounts
Warmy wins on: Email warm-up specialization, AI-driven optimization
Apollo wins on: B2B database access, lead generation features
Warmy vs Caja caliente
Warmy wins on: Adeline AI technology, 30+ language support
Warmbox wins on: Lower starting price, simpler interface
Warmy wins on: Pure deliverability focus, advanced analytics
Lemlist wins on: Email personalization, campaign automation
Warmy vs Smartlead
Warmy wins on: Dedicated warm-up expertise, template checker
Smartlead wins on: Unified inbox, white-label options
Warmy vs Maildoso
Warmy wins on: AI optimization, deliverability testing
Maildoso wins on: Bulk mailbox management, lower per-mailbox cost
More of Mailshake Compared
Here’s how Mailshake stacks up against other competitors:
Mailshake vs. Instantáneamente
Mailshake wins on: LinkedIn automation, power phone dialer
Instantly wins on: Unlimited email accounts, lower pricing
Mailshake wins on: Simpler interface, faster setup
Apollo wins on: Larger B2B database, free plan available
Mailshake vs Responder IO
Mailshake wins on: Data finder tool, easier learning curve
Reply IO wins on: AI SDR features, multichannel automation
Mailshake wins on: Phone dialer, LinkedIn automation
Lemlist wins on: Advanced personalization, custom landing pages
Mailshake vs Pájaro carpintero
Mailshake wins on: Multi-channel features, AI email writer
Woodpecker wins on: Lower starting price, free trial available
Mailshake vs Vendedor de artículos para el hogar
Mailshake wins on: LinkedIn integration, phone dialer
Saleshandy wins on: Sender rotation, B2B lead finder
Preguntas frecuentes
What is Mailshake used for?
Mailshake is a sales engagement platform designed for cold email outreach and multi-channel prospecting. Sales teams use it to send personalized cold emails at scale, automate follow-up sequences, and track campaign performance metrics. The platform includes features like A/B testing, LinkedIn automation, and a power phone dialer. Over 49,000 companies worldwide trust Mailshake for their outbound sales efforts. It connects directly to your email provider so messages send from your own inbox for better deliverability.
Is Warmy safe to use for email warm-up?
Yes, Warmy is completely safe for warming up your email accounts. The platform uses real email interactions from its network of genuine inboxes to build your sender reputation naturally. Warmy follows all major email provider guidelines including Gmail, Outlook, and custom SMTP servers. The AI-driven approach mimics natural email behavior patterns so your warm-up activity looks organic. Thousands of businesses use Warmy daily without any deliverability penalties or account restrictions.
Does Mailshake offer a free trial before purchasing?
No, Mailshake does not offer a free trial for any of its pricing plans. You need to commit to a paid subscription upfront to access the platform. However, they do provide a 30-day money-back guarantee if you’re not satisfied with the service. This allows you to test the platform risk-free for a month. If Mailshake doesn’t meet your needs, request a full refund within that period.
How does Warmy email warm-up work technically?
Warmy’s Adeline AI orchestrates the entire warm-up process automatically. The system connects your email account to a network of real, active inboxes. It sends and receives genuine email conversations on your behalf throughout the day. These emails get marked as important, starred, and moved from spam to inbox when needed. Over time, this activity signals to email providers that your address is trustworthy. The AI adapts the warm-up pace based on your current reputation score and sending patterns.
Can I use Mailshake and Warmy together for best results?
Absolutely, using Mailshake and Warmy together is a popular strategy among cold email professionals. Warmy handles the deliverability foundation by warming up your email accounts and maintaining sender reputation. Meanwhile, Mailshake manages your actual outreach campaigns with sequences, personalization, and tracking. This combination gives you the best of both worlds. Many users report significantly higher inbox placement rates when pairing a dedicated warm-up tool with their outreach platform.













