MxToolbox Reviews, Pricing, Features & Alternatives in 2026
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.
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.
Screenshots & Interface
Key Features
Stop guessing why your emails aren't being delivered. MxToolbox gives you a professional toolkit to inspect your DNS records and monitor your server health in real-time. Here is how you can take control of your email infrastructure:
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.
Integrations
Slack
Microsoft Teams
PagerDuty
Zapier
Pricing Plans
You can start using MxToolbox for free to perform manual lookups and basic monitoring. If you need automated alerts and detailed DMARC analysis, paid plans offer professional-grade features. Delivery Center plans start at $129/month for comprehensive email deliverability management.
Learning curve for interpreting technical DNS data
Who Should Use MxToolbox?
Ideal for IT administrators and web developers who need to monitor email deliverability and troubleshoot DNS issues for multiple client domains.
Best for Company Sizes
small-business
mid-market
enterprise
Popular Industries
Our Verdict
MxToolbox is an essential resource if you manage email servers or care about your domain's sender reputation. The free tools are perfect for quick fixes, while the paid monitoring services provide peace of mind by catching blacklist issues before they impact your business.
While the professional plans are a significant investment, the cost is often justified by the time saved during critical outages. Highly recommended for any organization that relies on email for sales, support, or internal operations and needs a reliable way to prove their mail setup is correct.
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