MxToolbox vs Validity Everest 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

Validity Everest

0.0 (0 reviews)

Validity Everest is an email deliverability platform that provides deep analytics and monitoring tools to help you reach the inbox and improve your overall email marketing performance.

Starting at --
Free Trial NO FREE TRIAL

Quick Comparison

Feature MxToolbox Validity Everest
Website mxtoolbox.com validity.com
Pricing Model Freemium Custom
Starting Price Free Custom Pricing
FREE Trial ✓ 30 days free trial ✘ No 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 Salesforce Marketo Microsoft Outlook Gmail HubSpot Mailchimp Oracle Eloqua Adobe Campaign
Target Users small-business mid-market enterprise mid-market enterprise
Target Industries
Customer Count 0 0
Founded Year 2004 2018
Headquarters Austin, USA Boston, USA

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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Validity Everest

Validity Everest is a dedicated email deliverability platform designed to help you navigate the complexities of modern inbox placement. Instead of guessing why your emails land in spam, you get direct visibility into sender reputation, blacklist status, and mailbox provider filtering. You can proactively identify issues before hitting 'send' by testing your creative across hundreds of real-world devices and email clients.

The platform serves mid-market and enterprise marketing teams who rely on high-volume email for revenue. You can monitor your performance in real-time with detailed dashboards that highlight exactly where your deliverability is failing. By cleaning your lists and optimizing your sending infrastructure within the tool, you ensure your messages actually reach your customers' eyes.

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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Validity Everest Features

  • Inbox Placement Monitoring. Track exactly where your emails land across different mailbox providers so you can fix delivery issues immediately.
  • Reputation Tracking. Monitor your sender score and blacklist status in real-time to protect your brand's ability to reach the inbox.
  • Design & Content Previews. View how your emails look on over 800 different devices and browsers to ensure a perfect user experience.
  • List Verification. Clean your email lists automatically to remove invalid addresses and reduce bounce rates before you start sending.
  • Engagement Analytics. Analyze how your subscribers interact with your content to optimize your subject lines and sending frequency.
  • Competitive Intelligence. Gain insights into your competitors' email strategies and performance to stay ahead in your subscribers' inboxes.

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
V

Validity Everest Pricing

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

Validity Everest

Pros

  • Comprehensive visibility into mailbox provider filtering
  • Detailed seed list testing for accurate placement data
  • Robust competitive benchmarking tools for market insights
  • Excellent integration with major email service providers

Cons

  • Significant learning curve for non-technical marketing users
  • Premium pricing makes it expensive for smaller senders
  • Interface can feel cluttered due to high data density
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