MxToolbox review (2026): is the free plan enough?
Email and DNS lookups plus blacklist and DMARC monitoring
Black Friday: is there a MxToolbox sale?
MxToolbox report card
Fair · out of 4.0 · graded Nov 12, 2026
Best for blacklist and DMARC monitoring for a domain
MxToolbox watches blacklists, DMARC, SPF and mailflow for a domain. The free plan is weekly blacklist checks for 1 domain, the first paid plan is $129 a month for 5 domains, and inbox placement and DMARC reports only come with paid plans.
Who MxToolbox is for
- Fits if you want to be told when your sending domain lands on a blacklist
- Works for teams that want DMARC, inbox placement and blacklists in one tool
Who MxToolbox is not for
- Pricey if you are one person: the first paid plan is $129 a month
- Tight if you stay free, as it is weekly blacklist checks for 1 domain
- Tight if you want more domains, since both paid plans cover 5
- Watch out: managed services are not priced, and the page gives no billing basis
Why MxToolbox gets a 2.0
Five grades, each with its reason. The GPA is their average: an A is 4 points, an F is none.
- DValue for moneyDelivery Center is $129 a month for 5 domains and Plus is $399, above the $99 where the dearest tenth of deliverability tools starts. The page does not say if it is billed monthly or yearly.
- CFree plan and trialFree is weekly blacklist monitoring for 1 domain. Inbox placement, DMARC reports and anything beyond that are paid.
- BFeaturesInbox placement, blacklist monitoring, DMARC, SPF and DKIM management, complaints and mailflow in one place. It covers a wide job, and managed services are not priced.
- CEase of useNo store rating on record. You add domains and records and read the monitors, so there is setup.
- CPlatforms and integrationsWeb only. Google Postmaster Tools is the one integration listed.
What these grades rest on. Graded from this listing, whose facts were read from MxToolbox's own pages on 12 November 2026. Not based on using the product, and shorter than our full reviews. How we review and grade.
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<a href="https://toolgpa.com/tools/mxtoolbox#review"><img src="https://toolgpa.com/badge/mxtoolbox.svg" alt="MxToolbox: 2.0 GPA on ToolGPA" width="196" height="56"></a>Where MxToolbox stands among email verification and deliverability tools
MxToolbox's GPA of 2.0 is higher than 4 of the 38 other email verification and deliverability tools we grade, and level with 7.
It stands best on features (B, above 24 of 38) and worst on value for money (D, above 0).
Its paid plans start at $129 a month, against a middle price of $17.49 for the category: 24 of the 25 others that charge start lower.
On features, ease of use and platforms it scores 2.3 out of 4. 8 tools score higher and cost less.
Each grade against the category
Every bar is all 39 email verification and deliverability tools we grade, cut by the letter each got. MxToolbox’s own letter is outlined.
- DValue for moneyAbove 0 of 38, level with 4
- CFree plan and trialAbove 5 of 38, level with 28
- BFeaturesAbove 24 of 38, level with 14
- CEase of useAbove 1 of 38, level with 28
- CPlatforms and integrationsAbove 0 of 38, level with 13
Price against what you get
Each dot is one of 26 email verification and deliverability tools. Further left costs less, and higher up scores better on features, ease of use and platforms. Point at a dot to see which tool it is.
Features, ease of use and platforms, averaged
What paid plans start at, a month (each step along is roughly double) →
- The best score at each price
- Has a free plan
- No free plan
Keep MxToolbox, or make your own?
Keep it
The plain part of MxToolbox you could make: reports. What surrounds it you could not. The 3 things listed below take a company, not a weekend.
That makes this kind of software worth paying for, not this one in particular: 27 of the 38 other email verification and deliverability tools grade higher. It costs $1,548 a year.
What you could make
- Reports: an app builder makes this well.
What you could not
- Reading the reports inbox providers send about your domain.
- It plugs into other products, Google Postmaster Tools among them, and has an API.
- The depth: we grade its features B, which means it covers the whole job.
What this rests on. MxToolbox’s listing: what it does, where it runs, what it plugs into and what it costs. It is a judgement about the kind of software this is. We have not built a replacement for it, and making your own means looking after it too. How we decide, and every tool’s verdict.
What is MxToolbox?
MxToolbox is known for its web lookup tools for MX records, blacklists, DNS and email headers. Its Delivery Center product adds inbox placement analysis, DMARC reporting, SPF, DKIM and BIMI management, and monitoring of sending IPs against blacklists. A free plan covers weekly blacklist monitoring of one domain, and a managed service handles reputation and DMARC enforcement for a customer.
Worth knowing
- The free plan monitors one domain, weekly; inbox placement and DMARC reports are paid.
- Both paid plans cover 5 domains; Plus raises the message volume, not the domain count.
- The page shows a monthly price and does not say whether it is billed monthly or annually.
- Managed services pricing is not listed.
Key features
- Inbox placement analysis
- Checks a campaign for placement at inbox providers such as Google and Outlook.com and reviews it against Google, Microsoft and Yahoo bulk sender requirements.
- Adaptive blacklist monitoring
- Monitors sending IP addresses, including third-party senders, against more than 100 blacklists.
- DMARC, SPF and DKIM management
- Analysis and management tools for moving to a reject policy, adopting BIMI and watching compliance. SPF flattening is on the Plus plan.
- Recipient complaints
- Pulls feedback from Google Postmaster Tools, feedback loops and other complaint mechanisms.
- Mailflow monitoring
- Round-trip monitoring of sending and receiving latency with alerts based on thresholds.
- Managed services
- A done-for-you service covers inbox placement, blacklist monitoring, SPF/DKIM setup and DMARC enforcement.
MxToolbox pricing
As of Nov 12, 2026, MxToolbox has a free plan, and paid plans start at $129 per month.
- Starts at
- $129 per month
- Free plan
- Weekly blacklist monitoring for 1 domain.
- Free trial
- None listed
| Plan | Price | What you get |
|---|---|---|
| Free | $0 | Blacklist monitoring, run weekly, for 1 domain. |
| Delivery Center | $129per month for 5 domains and 500,000 messages (billing basis not shown) | 30 inbox placement analyses a month, complaint reporting, DMARC reports, SPF/DKIM analysis, BIMI management, impersonation protection, mailflow monitoring. |
| Delivery Center Plus | $399per month for 5 domains and 5M messages (billing basis not shown) | 100 inbox placement analyses a month, plus advanced delivery threat tools and SPF flattening on top of Delivery Center. |
Read from mxtoolbox.com on Nov 12, 2026. Prices change, so confirm with MxToolbox before you buy.
Works with
- Google Postmaster Tools
MxToolbox alternatives
- MxToolbox vs GlockApps
Free plan · from $59/mo
- MxToolbox vs dmarcian
Free plan · from $19.99/mo
- MxToolbox vs EasyDMARC
Free trial · from $35.99/mo
- MxToolbox vs Dmarcly
Free trial · from $17.99/mo
Common questions
Does MxToolbox have an Android app?
No Android app was listed when its pages were read on Nov 12, 2026. MxToolbox is listed for Web.
Does MxToolbox have an iPhone app?
No iPhone app was listed when its pages were read on Nov 12, 2026. MxToolbox is listed for Web.
Is MxToolbox open source?
MxToolbox is not described as open source on its own site, as read on Nov 12, 2026.
Does MxToolbox have an API?
Yes. MxToolbox offers a public API, according to its own site.
Sources for this page
The prices, plans, platforms and features above were read from these pages on Nov 12, 2026.