Email Blacklist Checker vs MXToolbox: Which Should You Use?

Compare Email Blacklist Checker with MXToolbox for blacklist monitoring. Understand the differences in features, focus, and use cases.

MXToolbox is one of the most well-known tools for checking email infrastructure, including blacklist status. But is it the right choice for your blacklist monitoring needs? Here's how Email Blacklist Checker and the Email Deliverability Suite compare to MXToolbox for different use cases.

Quick Comparison

FeatureEmail Blacklist CheckerMXToolbox
Primary focusBlacklist + deliverabilityGeneral email tools
Blacklist coverageMajor impactful listsExtensive list count
Continuous monitoringYes (with Suite)Yes (paid)
Related toolsSPF, DKIM, DMARC checkersMany diagnostic tools
PricingFocused pricingBundled with other tools
InterfaceClean, single-purposeFeature-rich, complex

Different Tools, Different Focus

MXToolbox: The Swiss Army Knife

MXToolbox offers many email-related tools:

  • Blacklist lookup
  • MX record lookup
  • DNS diagnostics
  • SMTP testing
  • Header analysis
  • And dozens more

It's a comprehensive toolkit for email administrators who need various diagnostic capabilities.

Email Blacklist Checker: Focused on What Matters

Email Blacklist Checker concentrates on blacklist status and email deliverability:

  • Blacklist checking for IPs and domains
  • Focus on blacklists that actually impact delivery
  • Integrated with authentication tools (SPF, DKIM, DMARC)
  • Part of a cohesive deliverability monitoring suite

The focus means simpler workflows for deliverability-specific needs.

Blacklist Coverage: Quality vs Quantity

The List Count Trap

Some services advertise checking "100+ blacklists" or similar large numbers. But does this matter?

Many blacklists are obscure: Rarely used by major email providers.

Some are defunct: No longer maintained or queried.

Impact varies wildly: Spamhaus affects everyone; some lists affect almost no one.

Checking more lists isn't automatically better.

What Actually Affects Delivery

Blacklists that matter most:

  • Spamhaus (SBL, XBL, PBL, DBL): Universally checked
  • Barracuda: Common in enterprise
  • SpamCop: Moderate impact
  • Major provider lists: Google, Microsoft internal lists

Being listed on an obscure blacklist with 100 users means nothing. Being listed on Spamhaus means significant delivery problems.

Our Approach

Email Blacklist Checker focuses on:

  • Blacklists that actually impact deliverability
  • Both IP and domain blacklists
  • Lists used by major email providers
  • Actionable results, not noise

Continuous Monitoring

Why One-Time Checks Aren't Enough

Both tools offer one-time lookups. But blacklist status changes:

  • You could be listed tomorrow
  • A listing could expire
  • New issues could emerge
  • Without monitoring, you discover problems too late

MXToolbox Monitoring

MXToolbox offers monitoring in their paid plans:

  • Monitor multiple assets
  • Email alerts on changes
  • Part of broader monitoring package
  • Bundled with other MXToolbox features

Email Deliverability Suite Monitoring

Our monitoring approach:

  • Daily blacklist checks
  • Alerts on any status change
  • Integrated with authentication monitoring
  • Focused on deliverability signals
  • Part of cohesive deliverability toolkit

Integrated Deliverability Tools

The Deliverability Ecosystem

Blacklists are one factor in email deliverability. Others include:

  • SPF: Sender authorization
  • DKIM: Message signing
  • DMARC: Authentication policy
  • Domain reputation: Beyond blacklists
  • Content: Message characteristics

Our Integrated Approach

Email Blacklist Checker is part of a suite:

All focused on email deliverability, working together.

MXToolbox Integration

MXToolbox offers many tools, but they're broader:

  • General DNS tools
  • Network diagnostics
  • Website monitoring
  • Email tools among many others

Good if you need general IT diagnostics; more than needed for pure deliverability focus.

When to Choose MXToolbox

MXToolbox may be better if you:

  • Need general email diagnostic tools
  • Want network and DNS testing beyond email
  • Already use MXToolbox for other purposes
  • Need the specific tools they offer
  • Prefer a single vendor for IT diagnostics

When to Choose Email Blacklist Checker

Email Blacklist Checker may be better if you:

  • Focus specifically on email deliverability
  • Want cleaner, simpler interface for blacklist checking
  • Prefer focused tools over feature-packed dashboards
  • Value integration with authentication checking
  • Want monitoring focused on what impacts delivery

Try Both

The best tool is the one that fits your workflow. Both offer free blacklist lookups—try each and see which works better for your needs.

Focused email deliverability monitoring

Monitor blacklists, authentication, and reputation. Purpose-built for email deliverability.

Start Monitoring