Software Alternatives, Accelerators & Startups

Bitrix24 VS Mailwarm

Compare Bitrix24 VS Mailwarm and see what are their differences

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Bitrix24 logo Bitrix24

Boost your team's success with Bitrix24! Seamlessly collaborate, automate tasks, and manage projects in one powerful platform. Unleash productivity, streamline workflows, and achieve your goals with ease. Your all-in-one solution for business growth.

Mailwarm logo Mailwarm

Email warmup tool to avoid spam folder, since 2020 - Backed by Email Deliverability Experts
  • Bitrix24 Landing page
    Landing page //
    2023-02-16

Bitrix24 is a versatile all-in-one SaaS platform designed to streamline business operations for teams of all sizes. With over 15 million users worldwide, it integrates a robust suite of tools, including CRM, project management, collaboration, and communication features, into a single, cloud-based workspace.

Bitrix24 eliminates the need for multiple subscriptions by offering a centralized hub for managing tasks, customer relationships, and internal workflows, making it a cost-effective choice for startups, SMBs, and enterprises.

The CRM is a standout feature, enabling lead capture, sales automation, and detailed analytics. Users can manage pipelines, generate reports, and integrate with social media and email for seamless customer engagement.

CoPilot, Bitrix24’s AI assistant, enhances productivity by automating tasks like lead data entry and call transcriptions. Project management tools include Kanban boards, Gantt charts, and time tracking, ensuring efficient task delegation and progress monitoring.

Collaboration is effortless with group chats, HD video calls, and file-sharing capabilities. The platform’s Contact Center unifies communication channels—live chat, telephony, and social media—into one dashboard. Bitrix24 also offers a no-code website builder, HR tools, and document management, supporting diverse business needs. Its mobile app ensures accessibility for remote teams.

Bitrix24’s pricing is a key advantage, with a free plan for unlimited users and paid plans starting at $49/month, offering scalability without per-user fees. The platform supports 18 languages and integrates with tools like Google Drive, PayPal, and Trello. While its extensive features may present a learning curve, Bitrix24 provides 24/7 support, tutorials, and a knowledge base to ease onboarding.

  • Mailwarm best email warmup tool
    best email warmup tool //
    2026-02-04
  • Mailwarm best email warmup tool - spam score
    best email warmup tool - spam score //
    2026-02-04
  • Mailwarm See Why Teams Love Mailwarm
    See Why Teams Love Mailwarm //
    2026-02-12
  • Mailwarm Activity of email interactions
    Activity of email interactions //
    2026-02-12
  • Mailwarm live spam score monitoring
    live spam score monitoring //
    2026-02-12
  • Mailwarm Deliverability Analytics
    Deliverability Analytics //
    2026-02-12

Mailwarm is an automated email warmup and deliverability platform designed to help businesses keep their emails out of spam folders and consistently reach the inbox.

Since 2020, Mailwarm has helped founders, sales teams, marketers, and agencies improve email deliverability, build strong sender reputation, and scale cold email outreach safely. We focus on the real fundamentals of deliverability: trust, consistency, and genuine engagement.

Mailwarm automatically warms up new domains, inboxes, and SMTP servers by generating natural interactions between real email accounts. This process protects your reputation, prevents spam filtering, and improves inbox placement across major providers including Gmail, Outlook, Microsoft 365, and Yahoo.

Key Features: - Automated email warmup for Gmail, Outlook, and Microsoft 365 - Multi-provider warmup for realistic sender reputation building - Spam score tracking to measure inbox vs spam performance - Bounce prevention and verification systems - SMTP, domain, and mailbox warmup - Easy one-click Outlook & Office365 connection - Guided SMTP setup and deliverability monitoring - Stable warmup with auto-recovery from connection issues - Team and agency management with flexible plans

Email warmup is not a hack, it’s a process. Mailwarm was built to do it properly, using real engagement signals to help your emails earn long-term trust with mailbox providers.

Whether you’re launching new outreach campaigns, onboarding new sales reps, or managing multiple client accounts, Mailwarm helps you send emails with confidence and achieve better inbox placement instead of landing in spam.

Mailwarm is not just an email warmup tool. Every plan includes an email deliverability expert who works with you to set up your infrastructure, monitor your performance, and fix issues that impact your inbox placement. Most tools show you data. Mailwarm helps you improve results.

Bitrix24

$ Details
freemium $49 / Monthly (5 users / 24 GB )
Platforms
-
Release Date
-
Startup details
Country
United States
State
Virginia
City
Alexandria

Mailwarm

$ Details
paid $69 / Monthly ("Up to 50 emails/day", "1 account (1 SMTP)", "Chat support")
Platforms
GMail Outlook SMTP Zoho Web Yahoo Mail
Release Date
2020 December
Startup details
Country
France
City
Rouen
Founder(s)
Gonzague Hacher, Amine Benjelloun, Thami Benjelloun, Othman Katim
Employees
10 - 19

Bitrix24 features and specs

  • Comprehensive Features
    Bitrix24 offers an extensive range of tools including project management, CRM, communication, and collaboration tools, making it a one-stop solution for business needs.
  • Free Plan
    Bitrix24 provides a free plan with a generous number of features and user limits, which is ideal for small businesses or startups on a budget.
  • Customizable
    The platform offers a high degree of customization, allowing businesses to tailor modules and interface layouts to fit their specific needs.
  • Integrated Communication Tools
    Includes built-in communication tools such as chats, video calls, and social intranet, enhancing team collaboration and reducing the need for third-party communication apps.
  • Cloud and On-Premise Options
    Bitrix24 can be deployed either as a cloud service or on-premise, providing flexibility based on business requirements and compliance needs.

Possible disadvantages of Bitrix24

  • Complexity
    The extensive range of features can be overwhelming for new users, leading to a learning curve that may require time and training.
  • Interface Issues
    Some users report that the interface can be cluttered and less intuitive, which may hinder productivity until users become accustomed to it.
  • Performance
    There are occasional complaints about lag and slow performance, particularly when using feature-rich modules or during peak usage times.
  • Limited Customization in Free Plan
    While the free plan offers many features, advanced customization options and certain high-end functionalities are restricted to paid tiers.
  • Customer Support
    Customer support in the free version is limited, and some users have reported slow response times or difficulty in resolving complex issues.

Mailwarm features and specs

  • Automated Email Warmup
    Mailwarm automatically warms up inboxes, domains, and SMTP servers by generating natural interactions between real email accounts to build and protect sender reputation.
  • Multi-Provider Warmup
    Supports warmup across Gmail, Outlook, Microsoft 365, Yahoo, and other providers to create realistic engagement signals and improve overall inbox placement.
  • Spam Score Monitoring
    Provides a weekly spam score that shows how often your emails land in your spam versus inbox, helping you track deliverability progress with real data.
  • Bounce Prevention & Verification
    Built-in verification systems detect and deactivate invalid inboxes automatically to prevent bounces, one of the most harmful signals for email deliverability.
  • One-Click Outlook & Office365 Setup
    Connect Microsoft 365 and Outlook accounts instantly through the official Microsoft sign-in process without complex SMTP configuration.
  • Simplified SMTP Configuration
    Pre-configured SMTP settings for major providers with step-by-step guidance make it easy to connect and start warming up in minutes.
  • Deliverability Analytics
    Detailed reports help users monitor warmup progress, engagement trends, and overall email performance to understand and improve sender reputation.
  • Engagement Simulation
    Mailwarm engages with emails by marking them as important, replying, and removing them from spam, mimicking the actions of a real recipient and thereby boosting sender reputation.

Possible disadvantages of Mailwarm

  • Cost
    Mailwarm is a premium service, which may be expensive for small businesses or individual users with limited budgets.
  • Dependency on Third-Party Tool
    Relying on an external service like Mailwarm means users don't have full control over the warming process, and there might be risks related to data privacy and service reliability.
  • Learning Curve
    Although the platform is designed to be user-friendly, new users might still face a learning curve in understanding and fully utilizing all features and analytics provided.
  • Limited Customization
    Some users may find that Mailwarm’s automation features lack the level of customization required for highly specific or complex email strategies.
  • No Instant Results
    The warming process is gradual and can take several weeks to show significant improvements in deliverability, which might not meet the needs of users looking for immediate results.

Analysis of Bitrix24

Overall verdict

  • Bitrix24 is considered a good option for businesses seeking a multifunctional platform that combines CRM, project management, and team collaboration tools. It is highly versatile and offers both cloud-based and on-premise solutions, catering to various business needs. However, the platform's extensive range of features can be overwhelming for some users, and there may be a learning curve involved.

Why this product is good

  • Bitrix24 is a comprehensive business management platform that offers a wide range of tools such as CRM, project management, communication, and collaboration features. It is designed to cater to businesses of various sizes, providing a unified workspace to streamline operations and enhance productivity. The platform's versatility and affordability make it an appealing choice for companies looking to consolidate multiple business processes in one place.

Recommended for

  • Small to medium-sized businesses looking for an all-in-one business management solution.
  • Companies seeking robust CRM and project management features.
  • Teams interested in a centralized platform for communication and collaboration.
  • Businesses with remote or distributed teams that need efficient tools for managing tasks and sharing information.

Analysis of Mailwarm

Overall verdict

  • Mailwarm is generally considered useful for businesses and individuals looking to improve their email deliverability rates. While there are positive reviews about its effectiveness in enhancing email reputation and ensuring better deliverability, the effectiveness may vary depending on individual use cases and how well the service is integrated with existing email strategies. It is most beneficial for users who have experienced issues with emails going to spam or have recently started using new email addresses for their campaigns.

Why this product is good

  • Mailwarm is a service designed to help increase the deliverability of emails by gradually warming up email addresses, particularly those used in cold email campaigns. It automates the process by sending emails from your account to its network of participants and receiving replies, which helps to build a positive reputation for new email addresses with email service providers. This can lead to better inbox placement and reduce the chances of emails being marked as spam, especially important for businesses engaged in outreach and marketing via email.

Recommended for

  • Businesses engaged in regular cold email outreach.
  • Startups launching new email campaigns.
  • Marketers looking to improve email deliverability.
  • Individuals and companies experiencing low open rates due to spam issues.

Bitrix24 videos

Bitrix24 Introduction New

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Mailwarm videos

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Category Popularity

0-100% (relative to Bitrix24 and Mailwarm)
Project Management
100 100%
0% 0
Email Marketing
0 0%
100% 100
Task Management
100 100%
0% 0
Email Warm Up
0 0%
100% 100

Questions & Answers

As answered by people managing Bitrix24 and Mailwarm.

What makes your product unique?

Mailwarm's answer:

Mailwarm is an email warmup and deliverability platform built by a Y Combinator and Station F startup.

Since 2020, we’ve worked with many types of companies: SaaS startups, recruitment agencies, e-commerce brands, and sales teams; to help them improve inbox placement safely.

Mailwarm is unique because it offers: - Real multi-provider warmup (Gmail, Outlook, Microsoft 365, Yahoo)

  • Clear and real spam score tracking

  • Built-in bounce prevention

  • Easy setup and stable automation

Our focus is simple: help businesses keep emails out of spam and land in the inbox.

Why should a person choose your product over its competitors?

Mailwarm's answer:

Mailwarm delivers real, measurable results instead of risky shortcuts.

Users choose Mailwarm because it provides: - Automated email warmup that protects sender reputation

  • Multi-provider engagement for realistic signals

  • Spam score to track deliverability progress

  • One-click Outlook and Office365 connection

  • Reliable campaigns with auto-recovery

It’s an easy, transparent, and professional way to improve email deliverability.

How would you describe the primary audience of your product?

Mailwarm's answer:

Mailwarm is for anyone who depends on email outreach:

  • Sales teams sending cold emails

  • Founders and startups launching new domains

  • Marketing agencies

  • Recruiters and staffing firms

  • Growth and outbound teams

If inbox placement matters to your business, Mailwarm is built for you.

What's the story behind your product?

Mailwarm's answer:

Mailwarm started as a real problem we faced ourselves.

We were two founders working at Station F in Paris, the largest startup incubator in Europe, trying to sell our own products. Every time we launched outreach campaigns, our emails kept landing in spam.

To solve this, we built an internal email warmup system for our personal use. After deep research into email deliverability, we created a stronger, more reliable solution.

Other startups in the incubator quickly asked to use it too; so we turned it into a real product.

After launching publicly, Mailwarm became #1 Product of the Day on ProductHunt and was accepted into Y Combinator, the world’s most prestigious startup accelerator.

Since then, Mailwarm has grown into a trusted platform used by thousands of companies to improve inbox placement and email deliverability.

Which are the primary technologies used for building your product?

Mailwarm's answer:

Mailwarm is a secure cloud-based SaaS platform built on:

  • SMTP and IMAP email protocols

  • Advanced verification systems

  • Multi-provider infrastructure

  • Real-time analytics and monitoring

  • Reliable automation engines

These technologies ensure stable, continuous email warmup.

Who are some of the biggest customers of your product?

Mailwarm's answer:

As a Y Combinator and Station F startup, Mailwarm works with:

  • Tech startups and SaaS companies

  • Recruitment and staffing agencies

  • Real Estate Agencies

  • B2B marketing agencies

  • E-commerce brands

  • Sales and outbound teams

  • Freelancers and consultants

From France to global markets, hundreds of organizations trust Mailwarm to improve email deliverability and inbox placement.

User comments

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Reviews

These are some of the external sources and on-site user reviews we've used to compare Bitrix24 and Mailwarm

Bitrix24 Reviews

25 Best Asana Alternatives & Competitors for Project Management in 2024
Bitrix24 is a work management and CRM software helping teams manage customer relations, plan projects, and collaborate with others. In Bitrix24’s free plan, users can set up task roles, track time, and work with tasks and add comments using email.
Source: clickup.com
The 19 Best Call Center Software (& Features You Need) in 2022
A contact center built around your to-do list, Bitrix24 helps teams collaborate to get their work done. They offer a multitude of customer service channels, including rentable telephone lines, live chat, and email queues that all integrate into Bitrix24's task management software and CRM. Bitrix24 also offers an on-premise solution for industries that are still required to,...
Top 9 Best Copper CRM Alternatives for Businesses in 2023
Bitrix24 is a robust CRM and task management system that assists businesses in making better use of their time and resources. This CRM application provides sales analytics and automation to help you increase your revenue. Furthermore, project management capabilities such as Gantt charts, time monitoring, and automated activities can aid in increasing productivity.
Source: magenest.com
Top 21 Salesforce’s Competitors and Alternatives
Efficient project planning is a vital prerequisite for your #workflows' success. It enables your #team to understand which kind of #efforts they are supposed to make, which #resources to use and which #goals to achieve.#Bitrix24 on #Project Plans: https://t.co/NjUh1sYQA4 pic.twitter.com/YipT8iys3d
10 Best Software For Project Management in 2022
Bitrix24 is a service that includes task management, project and time scheduling, visualization of information on a calendar, the ability to share documents, create virtual work groups, and receive notifications.
Source: medium.com

Mailwarm Reviews

  1. katewalker
    · Senior Digital Marketing Manager at Midland States Bank ·
    Steady Improvement in Email Deliverability

    I decided to try Mailwarm after having consistent issues with my emails landing in spam folders. At the beginning, I wasn’t fully sure what to expect, but the onboarding process was simple enough to get me started quickly. After running it for a while, I began to notice a steady improvement in my email deliverability. More of my messages started reaching the inbox instead of getting filtered out, which really helped with my outreach efforts. Overall, it’s been a reliable experience. It may not be perfect, but it definitely does what it’s supposed to do if you give it time.

    Competitors: Lemwarm by Lemlist
  2. John Fitzpatrick
    · CEO at Dublin's FM104 ·
    Helped My Emails Finally Land in Inbox

    I started using Mailwarm because I was struggling with my emails going straight to spam, especially for outreach. At first, I wasn’t expecting much, but after a couple of weeks, I actually started noticing a difference. The setup was pretty simple, and once everything was connected, it just kept running in the background without me needing to constantly check it. That’s something I really appreciated.

    Overall, I’d say it’s a reliable tool if you’re serious about improving email deliverability without overcomplicating the process.

    Competitors: InboxAlly
  3. Josh
    · CTO at Ambas ·
    A very good email warmup tool

    I have been using Mailwarm to warm up email accounts and improve overall deliverability for my outreach campaigns. The setup process was very simple and everything runs automatically without requiring constant monitoring. Since using the tool, I’ve seen a clear improvement in inbox placement and fewer emails landing in spam. It’s a reliable and effective solution for anyone doing cold email or managing multiple inboxes.

    Competitors: Warmy.io
    Pros:    Very easy and quick to set up|Fully automated email warmup process|Various email providers warmup|Simple, clean dashboard|Very professional and helpful support team

Mailwarm vs Mailreach vs Lemwarm: Which One Fits Your Needs in 2026?
To achieve consistent inbox placement in 2026, choosing the right warm-up tool is crucial. Each solution approaches email warm-up differently. Mailwarm emphasizes large-scale, authentic mailbox interactions. Mailreach is another warm-up tool operating in the same category as Mailwarm, providing similar solutions in automated mailbox interactions for sender reputation...
Top 14 Email Warm-Up Tools for B2B SaaS
Mailwarm: Mailwarm features a maintained network of 2,000+ active mailboxes. It automates opens, replies, spam removal, and marks emails as primary to steadily build sender reputation. The tool focuses on technical deliverability and gradual, natural warm-up.
Top 5 Email Warmup Tools in 2026
Mailwarm is dedicated to building sender reputation rather than marketing automation. Through a network of over 2,000 actively maintained mailboxes, it orchestrates gradual interactions, such as opens, replies, spam recovery, and tagging emails as primary, that help establish a positive sending history. Mailwarm supports all major providers and custom IMAP/SMTP settings and...
23 Best Cold Email WarmUp Tools in 2022 (Free + Paid)
You can visit Mailwarm’s official website and choose the plan which suits you the best for your warm up since it has really great deals, the only drawback is their no free trial which makes it hard to choose this but people do choose because of great deals and features provided by Mailwarm.
Source: inguide.in
Top 10 of the Best Email Warm Up tools in 2022
Mailwarm helps you achieve the required email activity both quantitatively and qualitatively in order to enter the main inbox. The Mailwarm team has set up +1000 email accounts that will interact with your inbox on a schedule you define. The service offers personalized emails designed to mimic human-to-human conversation. Mailwarm’s methods, according to users of the...
Source: mailmeteor.com

What are some alternatives?

When comparing Bitrix24 and Mailwarm, you can also consider the following products

Wrike - Wrike is a flexible, scalable, and easy-to-use collaborative work management software that helps high-performance teams organize and accomplish their work. Try it now.

Warmbox.ai - Warm up your cold email inbox, and never land in spam anymore!

Slack - A messaging app for teams who see through the Earth!

MailReach.co - The #1 email warming service to improve your deliverability by generating realistic and meaningful engagement to your emails. Easy-to-use solution to help you land in the main inbox instead of the spam folder.

Trello - Infinitely flexible. Incredibly easy to use. Great mobile apps. It's free. Trello keeps track of everything, from the big picture to the minute details.

Warmup Inbox - Warmup Inbox is a tool that automates the process of warming up your email inboxes, raising your sender reputation and inbox health automatically.