Brandwave

How popular isMXToolbox?

In September 2026, people searched for MXToolbox by name about 301,000 times worldwide, about the same as the previous year. These searches made up 70% of all global email deliverability testing tool searches, placing MXToolbox first out of eight tools. When we asked both ChatGPT and Google AI Overviews about email deliverability testing tools, MXToolbox appeared in two of the five answers and was the fourth most recommended of the eight.

Search and AI answers in September 2026

MXToolbox is the most searched of 8 competitors and the fourth most recommended in AI answers.

  1. MXToolboxShare of searches 70%Mentioned in 2 of 5 AI answersPlace in AI recommendations 4th
  2. Mail-TesterShare of searches 16.9%Mentioned in 4 of 5 AI answersPlace in AI recommendations 2nd
  3. MailtrapShare of searches 9.8%Mentioned in 2 of 5 AI answersPlace in AI recommendations 6th
  4. GlockAppsShare of searches 1.5%Mentioned in 4 of 5 AI answersPlace in AI recommendations 1st
  5. MailReachShare of searches 1.3%Mentioned in 3 of 5 AI answersPlace in AI recommendations 3rd

+3 more

MXToolbox website (opens in a new tab)

Follow MXToolbox and get free monthly updates on what changed

By continuing you'll get index updates and occasional product news from Brandwave. Unsubscribe any time. Privacy

Top email deliverability testing tools in ChatGPT and Google AI Overviews

In three ChatGPT questions and two Google AI Overviews, MXToolbox was mentioned in two out of five: in one of the three ChatGPT answers and in one of the two Google AI Overviews. MXToolbox is the fourth most recommended of the eight.

Most recommended by AI

Brands get a higher ranking if they are mentioned earlier in the answers.

  1. GlockApps1st
  2. Mail-Tester2nd
  3. MailReach3rd
  4. MXToolbox4th
  5. Litmus5th
  6. Mailtrap6th
  7. InboxAlly–
  8. MailMonitor–

Mentioned by AI

Each dot is one answer, filled in when that answer mentions the brand.

  • Mail-Tester4 of 5Named in 3 of 3 ChatGPT answersNamed in 1 of 2 Google answers
  • GlockApps4 of 5Named in 3 of 3 ChatGPT answersNamed in 1 of 2 Google answers
  • MailReach3 of 5Named in 3 of 3 ChatGPT answersNamed in 0 of 2 Google answers
  • MXToolbox2 of 5Named in 1 of 3 ChatGPT answersNamed in 1 of 2 Google answers
  • Mailtrap2 of 5Named in 2 of 3 ChatGPT answersNamed in 0 of 2 Google answers
  • Litmus2 of 5Named in 2 of 3 ChatGPT answersNamed in 0 of 2 Google answers
  • InboxAlly0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
  • MailMonitor0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers

See every answer about email deliverability testing tools

5 answers

Not named in any answer:

Brands are shown in the order each answer named them. The survey took place in the United States on October 20, 2026.

Which email deliverability testing tools compete with MXToolbox?

MXToolbox against email deliverability testing tools worldwide, by month

Share of searches by month for MXToolbox, Mail-Tester, Mailtrap. The figures are in the table below the chart.

View monthly share of searches table
MonthMXToolboxMail-TesterMailtrapGlockAppsMailReachInboxAllyLitmusMailMonitor
Oct 202566.5%16.6%13.8%1.5%0.97%0.24%0.19%0.19%
Nov 202568.6%16.6%11.7%1.5%1%0.2%0.2%0.2%
Dec 202566.2%16.6%13.9%1.5%1.2%0.29%0.19%0.24%
Jan 202668.3%17.1%11.8%1.2%1%0.22%0.16%0.2%
Feb 202668.2%17.1%11.7%1.2%1.2%0.24%0.16%0.2%
Mar 202668.8%16.6%11.8%1.2%1%0.17%0.16%0.16%
Apr 202670.5%14.4%12.1%1.3%1.3%0.21%0.17%0.14%
May 202668.5%16.6%11.8%1.2%1.2%0.2%0.16%0.2%
Jun 202668.3%16.7%11.7%1.5%1.2%0.2%0.16%0.16%
Jul 202668.1%17%11.7%1.5%1.2%0.21%0.13%0.13%
Aug 202667.1%17.6%11.6%1.5%1.5%0.29%0.2%0.2%
Sep 202670%16.9%9.8%1.5%1.3%0.24%0.14%0.14%

  1. 1.MXToolbox

    70%

    Held 1st. 301K estimated branded searches, +22.4% vs prior month. Share +2.8 points.

  2. 2.Mail-Tester

    16.9%

    Held 2nd. 72.7K estimated branded searches, +12.6% vs prior month. Share -0.7 points.

  3. 3.Mailtrap

    9.8%

    Held 3rd. 42.3K estimated branded searches, -0.84% vs prior month. Share -1.8 points.

  4. 4.GlockApps

    1.5%

    Held 4th. 6.6K estimated branded searches, +22.2% vs prior month. Share +0.1 points.

  5. 5.MailReach

    1.3%

    Held 5th. 5.4K estimated branded searches, 0% vs prior month. Share -0.2 points.

  6. 6.InboxAlly

    0.24%

    Held 6th. 1.1K estimated branded searches, 0% vs prior month. Share 0 points.

  7. 7.Litmus

    0.14%

    Held 7th. 590 estimated branded searches, -18.1% vs prior month. Share -0.1 points.

  8. 8.MailMonitor

    0.14%

    Held 8th. 590 estimated branded searches, -18.1% vs prior month. Share -0.1 points.

Compare popularity between MXToolbox and its closest rivals

Every comparison with MXToolbox

7 comparisons

How has branded search demand for MXToolbox changed worldwide over the last 12 months?

3 findings
  • Across the 12 months ending September 2026, estimated monthly branded searches for MXToolbox worldwide held steady at 301K.
  • Across the 12 months ending September 2026, MXToolbox’s share of searches among email deliverability testing tools worldwide increased from 66.5% to 70%.
  • Across the 12 months ending September 2026, MXToolbox’s share of searches among email deliverability testing tools worldwide peaked at 70.5% in April 2026 and was lowest at 66.2% in December 2025.

How did search popularity change for email deliverability testing tools worldwide in September 2026?

6 changes

  1. In September 2026, MXToolbox gained share of searches among email deliverability testing tools worldwide, from 67.1% to 70%.

  2. In September 2026, Mailtrap lost share of searches among email deliverability testing tools worldwide, from 11.6% to 9.8%.

  3. In September 2026, Mail-Tester lost share of searches among email deliverability testing tools worldwide, from 17.6% to 16.9%.

  4. Estimated monthly branded searches for MailReach worldwide rose 22.7% over 12 measured months, from 4.4K to 5.4K in September 2026.

  5. Estimated monthly branded searches for Litmus worldwide fell 33% over 12 measured months, from 880 to 590 in September 2026.

  6. Estimated monthly branded searches for MailMonitor worldwide fell 33% over 12 measured months, from 880 to 590 in September 2026.

How are MXToolbox’s branded searches counted?

1 search term

Brandwave collects information about searches that people make online using MXToolbox’s name. When viewed over time, estimated search volumes for this branded term can be used to understand whether interest in the brand is growing, holding steady, or fading.

  • mxtoolbox

Do you work for MXToolbox? To request corrections or removal please contact us via our support page and we will be happy to assist.

How the Brand Demand Index is measured

Creator with pink hair and a pink jacket

Is MXToolbox your brand?

Put your own campaigns, spend and outcomes next to this demand line, so you can see which of your marketing lined up with the movements above.

Start free