Brandwave

How popular isMailjet?

In September 2026, people searched for Mailjet by name about 74,000 times worldwide, a 32.7% decrease from the previous year. These searches made up 12.8% of all global email API platform searches, placing Mailjet fourth out of eight platforms. When we asked both ChatGPT and Google AI Overviews about email API platforms, Mailjet did not appear in any of the answers.

Search and AI answers in September 2026

Mailjet is the fourth most searched of 8 competitors and not listed in any AI answer.

  1. Twilio SendGridShare of searches 36.3%Mentioned in 3 of 5 AI answersPlace in AI recommendations 5th
  2. PostmarkShare of searches 13.4%Mentioned in 5 of 5 AI answersPlace in AI recommendations 1st
  3. MailgunShare of searches 12.9%Mentioned in 4 of 5 AI answersPlace in AI recommendations 4th
  4. MailjetShare of searches 12.8%Mentioned in 0 of 5 AI answersPlace in AI recommendations –
  5. ResendShare of searches 8.8%Mentioned in 4 of 5 AI answersPlace in AI recommendations 2nd

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Top email API platforms in ChatGPT and Google AI Overviews

In three ChatGPT questions and two Google AI Overviews, Mailjet did not appear in any of the five answers.

Most recommended by AI

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

  1. Postmark1st
  2. Resend2nd
  3. Amazon SES3rd
  4. Mailgun4th
  5. Twilio SendGrid5th
  6. Mailtrap6th
  7. Mailjet–
  8. MailerSend–

Mentioned by AI

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

  • Postmark5 of 5Named in 3 of 3 ChatGPT answersNamed in 2 of 2 Google answers
  • Mailgun4 of 5Named in 2 of 3 ChatGPT answersNamed in 2 of 2 Google answers
  • Resend4 of 5Named in 3 of 3 ChatGPT answersNamed in 1 of 2 Google answers
  • Amazon SES4 of 5Named in 3 of 3 ChatGPT answersNamed in 1 of 2 Google answers
  • Twilio SendGrid3 of 5Named in 3 of 3 ChatGPT answersNamed in 0 of 2 Google answers
  • Mailtrap1 of 5Named in 0 of 3 ChatGPT answersNamed in 1 of 2 Google answers
  • Mailjet0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
  • MailerSend0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers

See every answer about email API platforms

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 API platforms compete with Mailjet?

Mailjet against email API platforms worldwide, by month

Share of searches by month for Twilio SendGrid, Postmark, Mailgun, Mailjet, Resend, Mailtrap, Amazon SES. The figures are in the table below the chart.

View monthly share of searches table
MonthTwilio SendGridPostmarkMailgunMailjetResendMailtrapAmazon SESMailerSend
Oct 202543.2%8.8%15.3%15.3%2.4%8.4%4.6%2.1%
Nov 202540.1%10%17.4%14.3%2.9%7.8%5.2%2.3%
Dec 202541.6%12.5%14.8%12.1%3.4%8.1%5.4%2%
Jan 202638.2%11.7%16.6%13.6%4.2%7.5%6.1%2.2%
Feb 202639.1%11.9%17%11.4%4.8%7.7%6.2%1.9%
Mar 202641.7%10.4%14.8%12.1%5.8%8.1%5.4%1.6%
Apr 202638%11.5%16.4%11%6.4%9%6%1.8%
May 202641.1%12.4%14.7%9.8%7%8%5.4%1.6%
Jun 202640.2%12.1%14.3%11.7%7%7.9%5.2%1.6%
Jul 202635.2%12.9%15.3%10.2%9.6%8.4%6.8%1.7%
Aug 202637.9%14%13.4%9%9.2%7.4%7.3%1.8%
Sep 202636.3%13.4%12.9%12.8%8.8%7.1%7%1.7%

  1. 1.Twilio SendGrid

    36.3%

    Held 1st. 209K estimated branded searches, 0% vs prior month. Share -1.6 points.

  2. 2.Postmark

    13.4%

    Held 2nd. 77.3K estimated branded searches, 0% vs prior month. Share -0.6 points.

  3. 3.Mailgun

    12.9%

    Held 3rd. 74.1K estimated branded searches, -0.04% vs prior month. Share -0.6 points.

  4. 4.Mailjet

    12.8%

    Moved from 5th to 4th. 74K estimated branded searches, +49.5% vs prior month. Share +3.9 points.

  5. 5.Resend

    8.8%

    Moved from 4th to 5th. 50.9K estimated branded searches, +0.06% vs prior month. Share -0.4 points.

  6. 6.Mailtrap

    7.1%

    Held 6th. 40.8K estimated branded searches, -0.15% vs prior month. Share -0.3 points.

  7. 7.Amazon SES

    7%

    Held 7th. 40.5K estimated branded searches, 0% vs prior month. Share -0.3 points.

  8. 8.MailerSend

    1.7%

    Held 8th. 9.9K estimated branded searches, 0% vs prior month. Share -0.1 points.

Compare popularity between Mailjet and its closest rivals

Every comparison with Mailjet

8 comparisons

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

4 findings
  • Across the 12 months ending September 2026, estimated monthly branded searches for Mailjet worldwide fell from 110K to 74K.
  • Across the 12 months ending September 2026, Mailjet’s share of searches among email API platforms worldwide decreased from 15.3% to 12.8%.
  • Across the 12 months ending September 2026, Mailjet’s share of searches among email API platforms worldwide peaked at 15.3% in October 2025 and was lowest at 9% in August 2026.
  • Across the 12 months ending September 2026, Mailjet fell from 3rd to 4th among email API platforms worldwide.

How did search popularity change for email API platforms worldwide in September 2026?

6 changes

  1. In September 2026, Mailjet overtook Resend to rank 4th among email API platforms worldwide, with 12.8% of the searches.

  2. In September 2026, Twilio SendGrid lost share of searches among email API platforms worldwide, from 37.9% to 36.3%.

  3. In September 2026, Postmark lost share of searches among email API platforms worldwide, from 14% to 13.4%.

  4. In September 2026, Mailgun lost share of searches among email API platforms worldwide, from 13.4% to 12.9%.

  5. Estimated monthly branded searches for Resend worldwide rose 200.4% over 12 measured months, from 17K to 50.9K in September 2026.

  6. Estimated monthly branded searches for Amazon SES worldwide rose 22.4% over 12 measured months, from 33.1K to 40.5K in September 2026.

How are Mailjet’s branded searches counted?

1 search term

Brandwave collects information about searches that people make online using Mailjet’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.

  • mailjet

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How the Brand Demand Index is measured

Where does Mailjet compete?

Mailjet is ranked in two competitor sets. Each share is worked out among that set's brands, so it differs from set to set.
Competitor setRankShare of searchesRanking
Transactional email services4th of 812.2%Show ranking
Email API platforms4th of 812.8%Shown above
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