MxToolbox vs Warmy Comparison: Reviews, Features, Pricing & Alternatives in 2026

Detailed side-by-side comparison to help you choose the right solution for your team

Updated May 2026 8 min read

MxToolbox

0.0 (0 reviews)

MxToolbox provides a comprehensive suite of diagnostic tools and monitoring services to help you maintain healthy email delivery and resolve complex DNS or server configuration issues quickly.

Starting at Free
Free Trial 30 days
VS

Warmy

0.0 (0 reviews)

Warmy is an automated email warm-up tool designed to improve your sender reputation and ensure your messages land in the primary inbox rather than the spam folder.

Starting at $49/mo
Free Trial 7 days

Quick Comparison

Feature MxToolbox Warmy
Website mxtoolbox.com warmy.io
Pricing Model Freemium Subscription
Starting Price Free $49/month
FREE Trial ✓ 30 days free trial ✓ 7 days free trial
Free Plan ✓ Has free plan ✘ No free plan
Product Demo ✓ Request demo here ✓ Request demo here
Deployment cloud saas
Integrations Slack Microsoft Teams PagerDuty Zapier Gmail Outlook Office 365 SendGrid Mailgun Zoho Mail Amazon SES iCloud Yahoo Mail GMX
Target Users small-business mid-market enterprise small-business mid-market solopreneur
Target Industries
Customer Count 0 0
Founded Year 2004 2020
Headquarters Austin, USA Tel Aviv, Israel

Overview

M

MxToolbox

MxToolbox is your go-to platform for diagnosing and monitoring email delivery and infrastructure health. You can perform instant lookups for MX records, DNS configurations, and blacklist status to identify why your emails might be landing in spam folders. It simplifies the technical complexity of email protocols like SPF, DKIM, and DMARC by providing clear, actionable reports that show you exactly what needs fixing.

You can also set up automated monitoring to get alerted the moment your domain appears on a blacklist or if your mail server goes offline. This proactive approach helps you protect your brand reputation and ensures your critical communications always reach their destination. Whether you are an IT professional managing multiple domains or a small business owner troubleshooting a single mail server, the platform provides the visibility you need to keep your email systems running smoothly.

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Warmy

Warmy is a specialized deliverability platform that automates the process of warming up your email accounts. By generating human-like interactions and gradually increasing your sending volume, it helps you build a positive reputation with major email service providers. You can connect multiple mailboxes and let the AI-driven engine handle the complex scheduling required to stay out of spam filters.

The platform provides you with detailed health scores and real-time monitoring so you always know where your deliverability stands. Whether you are a solo founder or managing a large sales team, you can use these tools to protect your domain's integrity and maximize the open rates of your outbound campaigns. It simplifies the technical hurdles of email authentication and sender reputation management.

Overview

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MxToolbox Features

  • Blacklist Monitoring Check your IP or domain against over 100 blacklists and receive instant alerts if you are ever listed.
  • DNS Lookups Perform comprehensive lookups for MX, A, and TXT records to verify your server is configured correctly.
  • DMARC Reporting Analyze your DMARC data to see who is sending email on your behalf and block unauthorized spoofing attempts.
  • Mail Server Diagnostics Test your mail server's SMTP connection to identify performance bottlenecks or security vulnerabilities in your setup.
  • SPF & DKIM Validation Verify your email authentication records are valid so major providers like Google and Outlook trust your messages.
  • Domain Health Reports Run a single check to see a complete overview of your domain's technical health and security status.
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Warmy Features

  • AI-Powered Warm-up. Automate your email interactions with an AI engine that mimics human behavior to build trust with mailbox providers.
  • Deliverability Checker. Run instant tests to see exactly where your emails land and identify technical issues before you send campaigns.
  • Multi-Language Support. Warm up your inbox using messages in your specific target language to ensure your reputation is relevant to your region.
  • DNS Records Monitor. Track your SPF, DKIM, and DMARC settings in real-time to ensure your technical authentication remains valid and secure.
  • Template Testing. Upload your specific email templates to check their 'spamminess' score and receive suggestions for improving your content.
  • Mailbox Health Score. View a centralized dashboard that gives you a clear percentage score of your current sender reputation and domain authority.

Pricing Comparison

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MxToolbox Pricing

Free
$0
  • Unlimited manual lookups
  • 1 Blacklist monitor
  • Weekly health reports
  • Basic DNS diagnostics
  • Community support access
W

Warmy Pricing

Starter
$49
  • Up to 1,000 warm-up emails/month
  • 1 Mailbox included
  • AI-powered warm-up
  • Basic deliverability reports
  • Support for all major providers

Pros & Cons

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MxToolbox

Pros

  • Fast and reliable DNS lookup results
  • Comprehensive coverage of global email blacklists
  • Easy to understand DMARC report visualizations
  • Generous free tier for basic troubleshooting
  • Proactive alerts prevent long-term delivery issues

Cons

  • Interface feels dated compared to modern tools
  • Steep pricing jump for professional tiers
  • Learning curve for interpreting technical DNS data
A

Warmy

Pros

  • Very simple setup process for all major email providers
  • Detailed technical dashboard for monitoring DNS and SPF records
  • Supports warm-up in dozens of different languages
  • Helpful customer support team for troubleshooting deliverability issues

Cons

  • Higher starting price point compared to some basic competitors
  • Interface can feel data-heavy for non-technical users
  • No forever-free plan available for very small users
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