Warmbox vs Maildoso: Best Email Warmup Tool in 2025?

por | Last updated Aug 12, 2025

Winner
Warmbox Logo
4.8
  • Add Multiple Inboxes
  • Plug & Play Setup
  • Multiple Warm-up Options
  • Dashboard & Monitoring
  • Templates
  • DNS Cheaker
  • Paid Plans from $19/month
Runner Up
Maildoso logo
3.5
  • Domain forwarding
  • Warm-up Filters
  • CRM
  • Great deliverability
  • Domain Management
  • Over 2000 Happy Customers
  • Paid Plans from $299/month
Warmbox vs Maildoso

Tired of your emails landing in spam?  It’s frustrating, right?

You carefully craft the perfect message, only to have it disappear into the abyss.

That’s where email warmup tools come in.

These handy tools help improve your sender reputation so your emails reach the inbox.

In this corner, we have Warmbox! 🥊 And in the other, Maildoso! 🥊

Which one comes out on top? 🤔

We’ll compare Warmbox vs Maildoso to help you determine the best fit for your needs.

Overview

To give you the most accurate comparison, we’ve rigorously tested both Warmbox and Maildoso.

We’ve analyzed their features, ease of use, pricing, and customer support.

This hands-on experience allows us to provide an unbiased look at what each tool offers.

warmbox cta
4.8out of 5

Ready to give Warmbox a try? Sign up for a free trial and see how it can improve your email deliverability and acceptance!

Pricing: 30% discount for 1 year on any plan. Pricing Plan Starts at $19/month.

Key Features:

  • Automated Warm-up
  • Email Content Analysis
  • Deliverability Reports
Maildoso CTA
3.5out of 5

Ready to take control of your email deliverability and skyrocket your outreach success?

Pricing: Try it now. The premium plan starts at $299/month.

Key Features:

  • Automated Warm-up
  • Master Inbox
  • Custom Tracking Domain

What is Warmbox?

Have you ever heard of warming up your email? 🤔 It’s like stretching before a workout.

You need to prepare your email account to send lots of emails.

Warmbox helps you do this automatically.

It sends emails from your account and interacts with them, making you look like a real person.

This way, your emails will likely land in inboxes, not spam folders. Pretty cool, right? 😎

Also, explore our favorite Warmbox alternatives

warmbox homepage

Our Take

warmbox cta

Warmbox is a valuable tool for improving email deliverability, but its limited features and potential performance issues may be drawbacks for some users.

Key Benefits

  • Warm up the email accounts to improve deliverability.
  • Automate the process of sending & receiving emails.
  • Monitor your sender’s reputation and identify potential issues.
  • Integrates with popular email providers.
  • Offers a free trial to test the platform.

Pricing

Warmbox offers four paid plans:

  • Solo: $15 per month for one inbox warm-up.
  • Start-up: $69 per month for three inbox warm-up.
  • Growth: $139 per month for six inbox warm-up.
  • Team: Custom pricing.
warmbox pricing

Pros

  • Boosts email deliverability.
  • Automated and Time-Saving
  • Performance Tracking and Analytics
  • Offers insightful analytics.
  • Provides helpful templates.

Cons

  • Can be expensive.
  • Occasional Deliverability Hiccups
  • Limited customization options.
  • Learning curve for some features.

What is Maildoso?

Do you want to send cold emails that get opened? 🤔

Maildoso is like a secret weapon for your email campaigns.

It helps you avoid spam filters & land in the inbox. How?

It uses a network of real people to send and receive emails, making your messages look more legitimate.

Plus, it has tons of cool features to boost your results. Think of it as your email’s best friend! 😉

Also, explore our favorite Maildoso alternatives

Maildoso Homepage

Our Take

mailmodo cta

Maildoso is a decent option for businesses looking to personalize their email outreach. However, its complexity and limited email templates may be drawbacks for some users.

Key Benefits

  • Create highly personalized email campaigns.
  • Use dynamic variables and conditional logic.
  • A/B tests your campaigns to optimize performance.
  • Track your email opens, clicks, and replies.
  • Integrates with popular CRM and sales automation tools.

Pricing

Maildoso offers a free plan and four paid plans:

  • Free: Limited features for one user.
  • Small: $99 every 3 months for 12 email accounts.
  • Starter: $299 every 3 months for 40 email accounts.
  • Growth: $999 every 3 months for 140 email accounts.
  • Pro: $2,199 every 3 months for 400 email accounts.
mailmodo pricing

Pros

  • Excellent deliverability rates
  • Unlimited email accounts
  • Built-in Email Warm-up
  • Advanced Automation
  • Great customer support

Cons

  • Potential Learning Curve
  • Limited Email Tracking
  • Limited Third-Party Integrations
  • Higher Price Point

Feature Comparison

This comparison will help you choose between Warmbox, a dedicated email warm up service, and Maildoso, a specialized cold email infrastructure provider, for your cold email campaigns.

1. Core Purpose: Warm-up vs. Infrastructure

Warmbox is a specialized email warm up service focused on improving your inbox reputation and ensuring your emails avoid the spam folder. Maildoso is a cold email infrastructure provider, whose core purpose is to provide ready-to-use email accounts, domains, and the technical foundation for cold email outreach.

  • Warmbox: A dedicated email warm up service that uses AI to mimic human interactions and build a strong sender reputation.
  • Maildoso: A cold email infrastructure provider that offers domains, email accounts, and deliverability tools as a complete package.

2. Warm-up Process

Warmbox’s warm up process uses an art automatic warm AI engine to send and interact with emails in a realistic way. You can customize the warm up schedule and choose from different warm-up speeds. Maildoso also offers an AI-powered warm up process as a key part of its platform, including in-browser actions to simulate human behavior.

  • Warmbox: Provides an art automatic warm process with a customizable warm up schedule.
  • Maildoso: Offers an AI-based warm up process that simulates human-like actions to build and maintain sender reputation.

3. Deliverability Optimization

Both platforms offer deliverability tools. Warmbox provides features like blacklist monitoring and an inbox health checker. Maildoso’s approach to deliverability optimization is comprehensive, including IP rotation, DNS configuration, and automated email warm up.

  • Warmbox: Offers deliverability tools that check for blacklists and monitor inbox health.
  • Maildoso: Focuses on deliverability optimization through a robust email infrastructure and automated DNS setup.

4. IP Address and Domain Management

Maildoso is a key provider of email infrastructure, including the ability to manage multiple domains and unlimited email inboxes. It offers a dedicated ip address and IP rotation on some plans. Warmbox’s focus is on warming up the email accounts you connect, not providing the domains or a dedicated ip.

  • Warmbox: Connects to your existing email accounts to perform the warm up.
  • Maildoso: Provides its own email infrastructure, including multiple domains, unlimited email inboxes, and dedicated ip options.
Warmy Email Warm-Up

5. Inbox Management

For high-volume cold email campaigns, managing replies can be a challenge. Maildoso provides a master inbox that centralizes all replies from your unlimited inboxes. This feature is a key part of its offering. Warmbox is a warm up tool and does not provide a master inbox for managing replies to your cold email campaigns.

  • Warmbox: A warm up service that does not include a master inbox for reply management.
  • Maildoso: A key feature is its master inbox which centralizes replies from unlimited inboxes for easier management of cold email campaigns.

6. Email Marketing Campaigns

While both tools are critical for the success of email marketing campaigns, they serve different purposes. Warmbox is the email warm up service that ensures your campaigns are delivered. Maildoso is the provider of the email infrastructure, which you would then use with a separate email marketing or sales engagement tool to run your campaigns.

  • Warmbox: Optimizes the deliverability of your email marketing campaigns through email warm up.
  • Maildoso: Provides the cold email infrastructure needed to successfully run email marketing campaigns.

7. Automation and Positive Interactions

Warmbox automates the entire warm up process and uses its network to generate positive interactions, such as replies and opens. Maildoso’s email warm up is also automated and is designed to build a strong reputation to generate positive interactions that keep your cold email campaigns out of the spam folder.

  • Warmbox: Automates the warm up process to generate positive interactions from its network.
  • Maildoso: generate positive interactions during its automated warm up process to protect your inbox reputation.

8. User Interface and Analytics

Both platforms offer a simple and easy-to-use interface. They also provide detailed analytics on deliverability. Warmbox’s dashboard is focused on the health of your inbox and its reputation. Maildoso provides detailed analytics for monitoring inbox health, spam score, and deliverability.

  • Warmbox: Has a dashboard with detailed analytics that focuses on inbox reputation.
  • Maildoso: Offers detailed analytics and monitoring to help you understand and improve your deliverability optimization.
Maildoso personal experience

9. Provider Compatibility

Warmbox is compatible with a wide range of multiple email providers, including Gmail and custom SMTP servers. Maildoso also supports multiple email providers, such as google workspace, and provides its own unlimited email inboxes, which is a major distinction.

  • Warmbox: Connects with multiple email providers to warm up your existing email accounts.
  • Maildoso: Provides its own email infrastructure but also supports integration with providers like google workspace.

10. Email Outreach vs. Deliverability Support

Maildoso is fundamentally a cold email infrastructure provider that provides the technical foundation for cold email outreach with its domains and accounts. Warmbox is a deliverability tool that supports your email outreach, regardless of which sending tool you use.

  • Warmbox: A tool to support your email outreach by boosting deliverability.
  • Maildoso: A cold email infrastructure provider that enables your cold email outreach.

11. Customer Support

Both platforms are well-regarded for their customer support. Maildoso reviews praise its quick and professional support, especially with technical setup. Warmbox also has positive warmy reviews that highlight its responsive and helpful support team.

  • Maildoso: Known for quick and professional support with technical issues related to cold email infrastructure.
  • Warmbox: Receives positive warmy reviews for its helpful and responsive customer support.

What to Look for in an Email Warmup Tool? 🤔

  • Email Infrastructure: Ensure the platform supports multiple email accounts and lets you use your own domains for better control. Features like domain forwarding can also be crucial for managing replies effectively.
  • Deliverability: A good tool should offer robust features to warm up warm up emails and protect your cold email inbox so your messages don’t land in spam anymore.
  • Strategy Integration: Consider how the tool’s features align with your overall email marketing efforts to achieve your business goals.

Final Verdict

So, which tool comes out on top? 🏆

It’s a close call, but we chose Maildoso as the winner. Why?

Maildoso offers more advanced features and customization options.

This makes it a powerful tool for serious email marketers.

However, Maildoso is more expensive and might be too complex for beginners. If you’re starting or have a limited budget, Warmbox is an excellent alternative.

It’s user-friendly and gets the job done.

Ultimately, the best choice depends on the specific needs and budget.

We’ve given you the facts. Now, it’s up to you to decide!

We’re confident that either Warmbox or Maildoso will significantly improve your email deliverability and campaign results.

More of Warmbox

Here’s a comparison of Warmbox with its alternatives, highlighting their unique strengths:

  • Warmbox vs Snov IO: Warmbox ensures email deliverability and sender reputation. Snov IO offers a broader suite for lead generation, verification, and multi-channel campaigns.
  • Warmbox vs Instantly: Warmbox is a specialized email warm-up tool. Instantly is an all-in-one cold email outreach platform, including its warm-up feature.
  • Warmbox vs Apollo: Warmbox solely focuses on improving email deliverability through warming. Apollo is a comprehensive sales intelligence and engagement platform with lead finding.
  • Warmbox vs Hunter IO: Warmbox is an email warm-up tool for inbox placement. Hunter IO primarily finds and verifies email addresses and offers basic campaigns.
  • Warmbox vs Reply IO: Warmbox is a dedicated email warm-up solution. Reply IO is a multi-channel sales engagement platform with broader automation features.
  • Warmbox vs UpLead: Warmbox enhances email deliverability for outbound efforts. UpLead is a lead generation platform that provides high-quality, verified B2B contact data.
  • Warmbox vs Mailshake: Warmbox is a specialized email warm-up service. Mailshake provides an email outreach platform with campaign management and some warm-up capabilities.
  • Warmbox vs Lemlist: Warmbox is a standalone email warm-up tool. Lemlist offers a more comprehensive outreach platform with advanced personalization and its warm-up (Lemwarm).
  • Warmbox vs Woodpecker: Warmbox focuses on automated email warm-up for deliverability. Woodpecker is a cold email automation platform that prioritizes human-like sending and deliverability.
  • Warmbox vs Smartlead: Warmbox ensures email deliverability through dedicated warming. Smartlead is a comprehensive cold email outreach platform, including its warm-up.
  • Warmbox vs Saleshandy: Warmbox specializes in email warm-up to boost inbox placement. Saleshandy offers a sales engagement platform with email tracking and warm-up features.
  • Warmbox vs Klenty: Warmbox is a dedicated email warm-up service. Klenty is a sales engagement platform that automates outreach sequences and integrates with CRMs.
  • Warmbox vs Maildoso: Warmbox is a dedicated email warm-up tool with detailed monitoring. Maildoso also offers warm-up, along with a master inbox and custom domains.
  • Warmbox vs Manyreach: Warmbox ensures email deliverability through warming. Manyreach is a comprehensive cold outreach platform with unlimited prospects and diverse features.
  • Warmbox vs Warmy: Both Warmbox and Warmy are dedicated email warm-up services. They primarily differ in network size, pricing structures, and specific advanced features for deliverability.

More of Maildoso

Here’s a comparison of Maildoso with its alternatives in the cold outreach landscape:

  • Maildoso vs Snov IO: Maildoso prioritizes advanced email warm-up and deliverability. Snov IO offers comprehensive tools for email finding, verification, and multi-channel campaigns.
  • Maildoso vs Instantly: Maildoso focuses on robust email infrastructure and affordable warming for multiple accounts. Instantly excels in deliverability, speed, and unlimited warm-up for B2B outreach.
  • Maildoso vs Apollo: Maildoso emphasizes email deliverability and cost-effective warming. Apollo provides a vast B2B database for lead generation and sales engagement.
  • Maildoso vs Hunter IO: Maildoso facilitates robust email warm-up and cold outreach automation. Hunter IO is primarily an email finder and verifier with basic sending capabilities.
  • Maildoso vs Reply IO: Maildoso focuses on email deliverability and master inbox management. Reply IO delivers extensive multi-channel outreach, including LinkedIn automation and AI features.
  • Maildoso vs UpLead: Maildoso builds a strong email infrastructure for deliverability. UpLead is a sales intelligence platform renowned for high-quality, verified B2B contact data.
  • Maildoso vs Mailshake: Maildoso offers automated warm-up and a central inbox for account management. Mailshake provides an intuitive platform for personalized cold email and follow-up sequences.
  • Maildoso vs Lemlist: Maildoso provides advanced IP rotation for deliverability with multi-account warm-up. Lemlist specializes in hyper-personalized email campaigns using rich media and multi-channel sequences.
  • Maildoso vs Woodpecker: Maildoso offers advanced warm-up and master inbox features for email infrastructure. Woodpecker focuses on smart sending practices and strong deliverability for cold email campaigns.
  • Maildoso vs Smartlead: Maildoso provides a robust email infrastructure with a strong deliverability focus. Smartlead offers unlimited warm-up and high-volume cold email campaigns with detailed analytics.
  • Maildoso vs Saleshandy: Maildoso integrates multiple email accounts and warm-up for seamless management. Saleshandy provides automated cold email campaigns, tracking, and a B2B lead finder.
  • Maildoso vs Klenty: Maildoso focuses on improving email deliverability and warm-up. Klenty is a comprehensive sales engagement platform that integrates multi-channel outreach and CRM functionality.
  • Maildoso vs Warmbox: Maildoso includes warm-up within its broader email infrastructure platform. Warmbox is a dedicated, specialized tool focused solely on advanced email warm-up.
  • Maildoso vs Manyreach: Maildoso emphasizes cost-effective email deliverability through its master inbox. Manyreach offers flexible credit systems and a comprehensive platform for cold outreach.
  • Maildoso vs Warmy: Maildoso offers a warm-up as part of its overall email infrastructure solution. Warmy is a dedicated deliverability tool emphasizing advanced warming and reputation management.

Frequently Asked Questions

What is email warming?

Email warming is like introducing yourself slowly to email providers. It involves gradually rising the volume of emails you send and improving your sender reputation to avoid landing in spam.

Why do I need an email warm-up tool?

A warm-up tool automates the process, saving you time and effort. It also helps you simply avoid common mistakes that can hurt your deliverability.

How long does it take to warm up an email?

It depends on various factors, such as your email provider, sending history, and warm-up strategy. Generally, it takes a few weeks to a few months.

Can I use Warmbox and Maildoso with any email provider?

Both tools integrate with popular email providers like Gmail, Outlook, and most major email platforms.

Is email warming safe?

Yes, reputable email warm-up tools like Warmbox and Maildoso use safe and ethical practices to improve your sender’s reputation.

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