--- title: "Mailjet vs Postmark: Which is searched more?" description: "Is Mailjet or Postmark more popular in search? Compare estimated monthly branded-search demand and Share of Search inside the Email API platforms set worldwide. Branded searches tell you how often people look for a brand by name or related terms. Comparing these searches across competitors helps you see how popular each brand is over time." canonical: "https://gobrandwave.com/demand/global-en/categories/email-api-platforms/compare/mailjet-vs-postmark" publisher: "Brandwave" --- # Mailjet vs Postmark: Which is searched more? Is Mailjet or Postmark more popular in search? Compare estimated monthly branded-search demand and Share of Search inside the Email API platforms set worldwide. Branded searches tell you how often people look for a brand by name or related terms. Comparing these searches across competitors helps you see how popular each brand is over time. ## Key facts - **Compared**: Mailjet and Postmark - **Competitive set**: Email API platforms - **Market**: Global - **Month measured**: Sep 2026 - **Mailjet Share of Search**: 12.8% - **Postmark Share of Search**: 13.4% ## Is Mailjet or Postmark more popular in search? - In September 2026, Postmark had more branded searches than Mailjet among email API platforms worldwide. Postmark had about 77,300 branded searches, while Mailjet had 74,000. Postmark made up 13.4% of all email API platform searches we track, and Mailjet accounted for 12.8%. - The lead changed hands 5 times in the 12 months ending September 2026: Postmark took it in December 2025, Mailjet took it in January 2026, Postmark took it in February 2026, Mailjet took it in March 2026, Postmark took it in April 2026. - Across the 12 months ending September 2026, Mailjet’s share of searches among email API platforms worldwide moved from 15.3% to 12.8%, and its estimated monthly branded searches moved from 110K to 74K. - Across the 12 months ending September 2026, Postmark’s share of searches among email API platforms worldwide moved from 8.8% to 13.4%, and its estimated monthly branded searches moved from 63.5K to 77.3K. ## Top email API platforms in ChatGPT and Google AI Overviews In three ChatGPT questions and two Google AI Overviews, Postmark appeared in all five answers. Mailjet did not appear in any of the five answers. Brands get a higher AI rank if they are mentioned earlier in the answers that list options. | Brand | AI rank | ChatGPT answers that named it | Google AI Overviews that named it | All answers that named it | | --- | --- | --- | --- | --- | | Postmark | 1st | 3 of 3 | 2 of 2 | 5 of 5 | | Resend | 2nd | 3 of 3 | 1 of 2 | 4 of 5 | | Amazon SES | 3rd | 3 of 3 | 1 of 2 | 4 of 5 | | Mailgun | 4th | 2 of 3 | 2 of 2 | 4 of 5 | | Twilio SendGrid | 5th | 3 of 3 | 0 of 2 | 3 of 5 | | Mailtrap | 6th | 0 of 3 | 1 of 2 | 1 of 5 | | Mailjet | Not ranked | 0 of 3 | 0 of 2 | 0 of 5 | | MailerSend | Not ranked | 0 of 3 | 0 of 2 | 0 of 5 | ## Every AI answer about email API platforms - Asked ChatGPT "Which email API platform should I use?": 1. Resend, 2. Postmark, 3. Amazon SES, 4. Twilio SendGrid - Asked ChatGPT "What are the best email API platforms?": 1. Resend, 2. Postmark, 3. Twilio SendGrid, 4. Mailgun, 5. Amazon SES - Asked ChatGPT "What's the best email API platform for transactional email?": 1. Resend, 2. Postmark, 3. Amazon SES, 4. Mailgun, 5. Twilio SendGrid - Searched Google, AI Overview "best email api": 1. Resend, 2. Postmark, 3. Mailtrap, 4. Amazon SES, 5. Mailgun - Searched Google, AI Overview "transactional email api": 1. Postmark, 2. Mailgun Not named in any answer: Mailjet and MailerSend. Brands are listed in the order each answer named them. The answers were collected in the United States on October 20, 2026. ## How did search popularity change for email API platforms worldwide in September 2026? - In September 2026, Mailjet overtook Resend to rank 4th among email API platforms worldwide, with 12.8% of the searches. - In September 2026, Postmark lost share of searches among email API platforms worldwide, from 14% to 13.4%. ## Month by month | Month | Mailjet estimated searches | Mailjet Share of Search | Mailjet rank | Postmark estimated searches | Postmark Share of Search | Postmark rank | | --- | --- | --- | --- | --- | --- | --- | | Oct 2025 | 110K | 15.3% | 3 | 63.5K | 8.8% | 4 | | Nov 2025 | 90.5K | 14.3% | 3 | 63.5K | 10% | 4 | | Dec 2025 | 74K | 12.1% | 4 | 76.6K | 12.5% | 3 | | Jan 2026 | 90.5K | 13.6% | 3 | 77.6K | 11.7% | 4 | | Feb 2026 | 74K | 11.4% | 4 | 77.3K | 11.9% | 3 | | Mar 2026 | 90.5K | 12.1% | 3 | 77.3K | 10.4% | 4 | | Apr 2026 | 74K | 11% | 4 | 77.3K | 11.5% | 3 | | May 2026 | 60.5K | 9.8% | 4 | 76.8K | 12.4% | 3 | | Jun 2026 | 74K | 11.7% | 4 | 76.8K | 12.1% | 3 | | Jul 2026 | 60.5K | 10.2% | 4 | 76.8K | 12.9% | 3 | | Aug 2026 | 49.5K | 9% | 5 | 77.3K | 14% | 2 | | Sep 2026 | 74K | 12.8% | 4 | 77.3K | 13.4% | 2 | ## How each brand is measured Brandwave collects information about searches that people make online using Mailjet’s and Postmark’s names. When viewed over time, estimated search volumes for these branded terms can be used to understand whether interest in the brands is growing, holding steady, or fading. - **Mailjet**: Measured on the search term “mailjet”. - **Postmark**: Measured on the search terms “postmark”, “postmark email” and “postmarkapp”, summed into one figure. - [Mailjet profile](/demand/global-en/brands/mailjet) - [Postmark profile](/demand/global-en/brands/postmark) - [All email API platforms worldwide](/demand/global-en/categories/email-api-platforms): The set both shares are measured inside, 8 brands. ## Methodology - [How is the Brand Demand Index measured?](/demand/methodology): Where the figures come from, what they compare, and how they may be reused. ## Frequently asked questions ### Is Mailjet or Postmark more popular in search? In September 2026, Postmark had more branded searches than Mailjet among email API platforms worldwide. Postmark had about 77,300 branded searches, while Mailjet had 74,000. Postmark made up 13.4% of all email API platform searches we track, and Mailjet accounted for 12.8%. ## Cite this page Brandwave. "Mailjet vs Postmark: Which is searched more?". https://gobrandwave.com/demand/global-en/categories/email-api-platforms/compare/mailjet-vs-postmark This page is also available as HTML at https://gobrandwave.com/demand/global-en/categories/email-api-platforms/compare/mailjet-vs-postmark. Brandwave publishes an index of its Markdown pages at https://gobrandwave.com/llms.txt.