Why do people look for MXToolbox alternatives?

The most common reasons are: MXToolbox is complex and overwhelming for non-technical business owners, monitoring plans are expensive starting around $129 per month, and MXToolbox identifies authentication problems but does not generate ready-to-use DNS fix records. For small businesses focused on fixing email delivery, more targeted tools are easier and cheaper.

What is cheaper than MXToolbox for DMARC monitoring?

InboxGreen's monitoring plan starts at $19 per month for up to 5 domains with daily SPF, DKIM, and DMARC checks plus email alerts. That is significantly cheaper than MXToolbox's monitoring tier at around $129 per month.

MXToolbox Alternatives for Email Authentication

Q: What is the best free alternative to MXToolbox for email authentication?

InboxGreen is the most focused free alternative for email authentication. It offers a full SPF, DKIM, and DMARC check without any signup required, along with free tools including a blacklist checker, SPF generator, DMARC generator, email header analyzer, and BIMI checker. For network diagnostics like ping, traceroute, or BGP, MXToolbox remains the better choice.

Focused tools for SPF, DKIM, and DMARC - without the network diagnostics complexity.

MXToolbox is a powerful multi-tool for IT professionals. If you're a small business owner just trying to fix emails going to spam, there are more focused (and more affordable) tools that get straight to the point.

Why people look for MXToolbox alternatives

Overwhelming for non-technical users. MXToolbox has dozens of tools - ping, traceroute, BGP routing, SMTP diagnostics. If you just need to fix SPF, you're wading through a lot of complexity you don't need.
Expensive for monitoring. MXToolbox's monitor plans start around $129/month. For a small business checking a few domains, that's a lot.
No copy-paste fix output. MXToolbox tells you what's wrong but doesn't generate the exact DNS records you need to add to Cloudflare or Namecheap.
Signup required for useful features. Some features are limited on the free tier.

Best MXToolbox alternatives

1. InboxGreen

Best for small business

InboxGreen is the most focused alternative for business owners whose emails are going to spam. It checks SPF, DKIM, and DMARC for any domain instantly, explains results in plain English, and generates the exact DNS records you need to fix the problem - formatted for Cloudflare, Namecheap, Google Workspace, and Microsoft 365.

Free features (no account):

Full SPF/DKIM/DMARC check
Blacklist checker
SPF & DMARC generator
BIMI checker, MTA-STS checker
Email header analyzer

Paid:

FixKit: $29 one-time
Monitoring: $19/mo (5 domains)
Agency: $99/mo (30 domains)

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2. EasyDMARC

Best for DMARC reporting

EasyDMARC is focused on DMARC aggregate report analysis. It parses the XML reports that DMARC-compliant receivers send to your rua= address and visualizes which senders pass or fail. Better than MXToolbox for DMARC, but still requires signup and a subscription.

Pricing: Free tier (1 domain), paid from ~$18/month. Good for: teams that need to manage multiple senders. Not great for: quick one-time fixes or non-technical users.

3. Dmarcian

Enterprise-grade

Dmarcian is the enterprise DMARC specialist. Very deep aggregate report analysis and source identification. Overkill for most small businesses, but a strong choice for large organizations with complex infrastructure.

Pricing: 30-day free trial, then ~$20/domain/month. Good for: large enterprises. Not great for: small businesses or single-domain users.

4. DMARC Digests

Good free option

DMARC Digests (by Postmark) parses DMARC aggregate reports and sends you weekly summaries. Very simple and free for low volumes. Limited compared to full platforms, but good if you just want basic DMARC visibility.

Pricing: Free. Good for: getting started with DMARC reporting. Not great for: multi-domain management or SPF/DKIM fixing.

Quick comparison

Tool	Free check (no signup)	Copy-paste DNS fix	DMARC reports	Monitoring price
InboxGreen	Yes	Yes (FixKit $29)	Record validation + alerts	$19/mo (5 domains)
MXToolbox	Partial (limited)	No	Basic	~$129/mo
EasyDMARC	No (signup needed)	No	Yes - good	~$18/mo (1 domain)
Dmarcian	No (trial signup)	No	Yes - very deep	~$20/domain/mo
DMARC Digests	No (signup needed)	No	Weekly digest	Free

Try InboxGreen now - no account needed.
Check your domain's SPF, DKIM and DMARC in seconds and see exactly what to fix.

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FAQ

What is the best free alternative to MXToolbox?

For email authentication specifically, InboxGreen offers more free tools with no signup required - including SPF/DKIM/DMARC check, blacklist checker, SPF generator, DMARC generator, and email header analyzer. MXToolbox is better for network diagnostics (ping, traceroute, SMTP) that InboxGreen doesn't cover.

Does MXToolbox fix deliverability issues?

MXToolbox identifies problems but does not generate fix records. You still need to figure out the correct DNS record format for your registrar. InboxGreen's FixKit generates the exact SPF, DKIM, and DMARC records you need, formatted for your specific DNS provider.

Is there a free DMARC monitoring alternative to MXToolbox?

DMARC Digests is free for basic aggregate reporting. InboxGreen's monitoring plan starts at $19/month and covers daily checks, alerts, and up to 5 domains - significantly cheaper than MXToolbox's monitoring tier.