Software Alternatives, Accelerators & Startups

Nextcloud Forms VS Mailwarm

Compare Nextcloud Forms VS Mailwarm and see what are their differences

Nextcloud Forms logo Nextcloud Forms

馃摑 Simple form & survey app for Nextcloud. Contribute to nextcloud/forms development by creating an account on GitHub.

Mailwarm logo Mailwarm

Email warmup tool to avoid spam folder, since 2020 - Backed by Email Deliverability Experts
  • Nextcloud Forms Landing page
    Landing page //
    2023-09-10
  • 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鈥檚 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鈥檙e 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.

Nextcloud Forms

Website
github.com
Pricing URL
-
$ Details
-
Platforms
-
Release Date
-

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

Nextcloud Forms features and specs

  • Open Source
    Nextcloud Forms is open-source software, which means it is free to use and can be modified to fit specific needs. This allows organizations to have full control over their data and customize the tool as required.
  • Integration with Nextcloud
    Being a part of the Nextcloud ecosystem, it integrates seamlessly with other Nextcloud apps such as Files, Calendar, and Contacts. This creates a cohesive experience for users already utilizing Nextcloud services.
  • Data Privacy
    Nextcloud Forms allows users to host the application on their own server, providing enhanced control over data privacy and security. This is particularly important for organizations that handle sensitive information.
  • User-Friendly Interface
    The forms creator and interface are designed to be intuitive, making it easy for users to create and manage forms without requiring extensive technical knowledge.
  • Customizable
    Users have the ability to customize forms with various question types, themes, and configurations to suit their individual needs and preferences.

Possible disadvantages of Nextcloud Forms

  • Limited Features
    Compared to other form builders like Google Forms or Typeform, Nextcloud Forms can be lacking in some advanced features and integrations.
  • Self-Hosting Requirements
    Hosting Nextcloud Forms on a private server requires technical expertise and resources to set up and maintain the server, which may not be feasible for all users or small organizations.
  • Performance
    The performance and speed of the application can be highly dependent on the server's specifications and internet connection, which might not match the robustness of cloud-based solutions.
  • Community Support
    While there is community support, it might not be as immediate or extensive as the support provided by commercial form solutions, potentially leading to longer resolution times for issues.
  • Learning Curve
    For users unfamiliar with self-hosted applications or the Nextcloud environment, there might be a steeper learning curve in setting up and effectively using Nextcloud Forms.

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鈥檚 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 Nextcloud Forms

Overall verdict

  • Yes, Nextcloud Forms is a good choice, especially for individuals or organizations that prioritize data privacy and already utilize Nextcloud services for their collaboration and file-sharing needs.

Why this product is good

  • Nextcloud Forms is a self-hosted alternative to Google Forms that integrates seamlessly with the Nextcloud ecosystem. It offers privacy and data security by allowing users to keep control over their data. With features like multiple question types, shareable forms, and user-friendly interface, it is suitable for those who need secure and private form solutions.

Recommended for

    Nextcloud Forms is recommended for organizations, educational institutions, and individuals who are already using Nextcloud and are looking for a private, self-hosted form solution that integrates well with their existing infrastructure.

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.

Category Popularity

0-100% (relative to Nextcloud Forms and Mailwarm)
Surveys
100 100%
0% 0
Email Marketing
0 0%
100% 100
Form Builder
100 100%
0% 0
Email Warm Up
0 0%
100% 100

Questions & Answers

As answered by people managing Nextcloud Forms 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鈥檝e 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鈥檚 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鈥檚 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 Nextcloud Forms and Mailwarm

Nextcloud Forms Reviews

We have no reviews of Nextcloud Forms yet.
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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鈥檛 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鈥檚 been a reliable experience. It may not be perfect, but it definitely does what it鈥檚 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鈥檛 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鈥檚 something I really appreciated.

    Overall, I鈥檇 say it鈥檚 a reliable tool if you鈥檙e 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鈥檝e seen a clear improvement in inbox placement and fewer emails landing in spam. It鈥檚 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

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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鈥檚 methods, according to users of the...
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What are some alternatives?

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

LimeSurvey - LimeSurvey: the Online-Umfrage Tool - Open-Source Suryeys

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

Google Forms - Simple web forms from Google.

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.

Survey Monkey - Create and publish online surveys in minutes, and view results graphically and in real time. SurveyMonkey provides free online questionnaire and survey software.

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.