# MXToolbox: how AI models rank it, November 2026

Gane Index, November 2026 Edition. Named in 32 judge labels across 1 category by 13 of 14 models. Page: https://www.gane.ai/index/gtm/vendors/mxtoolbox

## Standing by category

| Category | Share | Rank | Negative rate | Labels |
|---|---|---|---|---|
| [Email deliverability and testing tools](https://www.gane.ai/index/gtm/marketing/email-deliverability-and-testing/index.md) | 2% | 8 | 6% | 32 |

## What the models said for it

- "start with Google Postmaster Tools and MXToolbox, which are both free and cover the most common starting points" (Claude Haiku 4.5, Email deliverability)
- "Use free tools (Google Postmaster, MXToolbox, Microsoft SNDS) for monitoring" (MiniMax M2.5, Email deliverability)
- "Start with free tools like MXToolbox and Google Postmaster for diagnostics." (Grok 4.20, Email deliverability)
- "If you are setting up technical authentication (SPF, DKIM, DMARC): Use MXToolbox or Mail-Tester." (Gemini 3.5 Flash, Email deliverability)

## And against it

- "Blocklist-only monitors such as MXToolbox or Heatwave: a clean result does not mean good deliverability" (Perplexity Sonar, Email deliverability)
- "basic free blocklist checkers (in isolation) ... Over-reliance can give false confidence." (Grok 4.20, Email deliverability)

## By model

| Model | First choice | Alternative | Mention | Warning | Labels |
|---|---|---|---|---|---|
| Claude Haiku 4.5 | 1 | 0 | 0 | 0 | 1 |
| GPT-5.4 mini | 0 | 0 | 1 | 0 | 1 |
| Gemini 3.5 Flash | 0 | 3 | 0 | 0 | 3 |
| Perplexity Sonar | 0 | 2 | 0 | 1 | 3 |
| Grok 4.20 | 1 | 1 | 1 | 1 | 4 |
| Mistral Small | 0 | 1 | 1 | 0 | 2 |
| DeepSeek V4 Flash | 0 | 2 | 0 | 0 | 2 |
| Llama 4 Maverick | 0 | 0 | 1 | 0 | 1 |
| Qwen 3.7 Flash | 0 | 1 | 0 | 0 | 1 |
| Kimi K2 | 0 | 1 | 1 | 0 | 2 |
| GLM 4.7 FlashX | 0 | 2 | 0 | 0 | 2 |
| MiniMax M2.5 | 1 | 3 | 1 | 0 | 5 |
| GPT-6 Luna | 0 | 0 | 0 | 0 | 0 |
| Muse Glimmer 30B | 0 | 4 | 1 | 0 | 5 |

## Sources returned with these answers

The sites and pages cited by the answers that named MXToolbox, from 75 of the 80 answers that named it (only the models that return a source list).

### Domains cited

- unspam.email: 35
- myemailverifier.com: 34
- emailtooltester.com: 24
- prospeo.io: 22
- toolradar.com: 22
- g2.com: 20
- glockapps.com: 20
- saleshandy.com: 20
- mailtester.com: 19
- salesdorado.com: 19

### Pages cited

- https://myemailverifier.com/blog/email-deliverability-tools: 34
- https://unspam.email/articles/email-deliverability-softwares: 24
- https://sendlayer.com/blog/best-email-deliverability-tools: 19
- https://toolradar.com/best/email-deliverability/for/small-businesses: 17
- https://emailtooltester.com/en/email-deliverability-test: 15
- https://omnisend.com/blog/email-deliverability-tools: 15
- https://saleshandy.com/blog/email-deliverability-tools: 15
- https://wiredmessenger.com/blogs/best-email-deliverability-tools: 15

## In its own words

What MXToolbox's own pages state, read 2026-10-05. Stated by the vendor, not checked by the index.

- Positioning: Check your DNS MX Records online (https://mxtoolbox.com/)
- For: email novice, professional, marketer or technician (https://mxtoolbox.com/c/products/msp)
- Price stated: Free $0/month; Delivery Center $129/month; Delivery Center Plus $399/month (https://mxtoolbox.com/c/products/msp)
- Starting price: 0/month (https://mxtoolbox.com/c/products/msp)
- Free plan or trial: Free MxToolBox Account — Get one (1) Free Monitor to alert you to Email Delivery Issues (https://mxtoolbox.com/c/products/msp)
- Integrations claimed: 6 (https://mxtoolbox.com/c/products/msp)

## What it publishes

Every page mxtoolbox.com exposes, read 2026-10-05: 905 addresses. By kind, pages and the last 90 days:

- blog: 834 pages, 47 in the last 90 days, latest 2026-10-02
- case study: 1 pages, 0 in the last 90 days, latest 2020-04-01
- conference or event: 1 pages, 0 in the last 90 days, latest 2016-10-01
- report or ebook: 2 pages, 0 in the last 90 days, latest undated
- comparison: 3 pages, 0 in the last 90 days, latest 2024-04-01
- template or tool: 3 pages, 0 in the last 90 days, latest 2018-12-01
- glossary or explainer: 19 pages, 0 in the last 90 days, latest 2019-08-01
- Recent: 2026-10-02 blog: Why email deliverability tools fail businesses https://blog.mxtoolbox.com/2026/10/02/why-email-deliverability-tools-fail-businesses
- Recent: 2026-10-02 blog: 08 https://blog.mxtoolbox.com/2006/08
- Recent: 2026-10-02 blog: 03 https://blog.mxtoolbox.com/2015/03
- Recent: 2026-10-02 blog: 12 https://blog.mxtoolbox.com/2014/12
- Recent: 2026-10-02 blog: 02 https://blog.mxtoolbox.com/2012/02
- Recent: 2026-10-02 blog: 04 https://blog.mxtoolbox.com/2011/04

## Record

- Method: https://www.gane.ai/index/gtm/methodology
- License: CC BY 4.0. Cite as Gane Index, November 2026 Edition, www.gane.ai/index/gtm.