Mailgun vs Postmark:Which is more popular by branded search?
In August 2026, Postmark had more branded searches than Mailgun among email API platforms worldwide. Postmark was estimated to have 77.3K branded searches compared to Mailgun’s 74.2K, and held a 16.9% Share of Search versus Mailgun’s 16.2%. These are worldwide searches for English-language branded terms.
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Which is more popular in search, Mailgun or Postmark?
Compare the APIs used to send transactional email. 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.
Share of Search by month for Postmark, Mailgun. The figures are in the table below the chart.
View monthly share of search table
| Month | Twilio SendGrid | Postmark | Mailgun | Resend | Amazon SES |
|---|---|---|---|---|---|
| Oct 2025 | 58.1% | 11.9% | 20.6% | 3.3% | 6.2% |
| Nov 2025 | 52.9% | 13.2% | 22.9% | 4.1% | 6.9% |
| Dec 2025 | 53.3% | 16.1% | 19% | 4.6% | 6.9% |
| Jan 2026 | 49.6% | 15.2% | 21.5% | 5.8% | 7.9% |
| Feb 2026 | 49.3% | 15% | 21.4% | 6.5% | 7.9% |
| Mar 2026 | 53.1% | 13.2% | 18.8% | 8% | 6.9% |
| Apr 2026 | 48.2% | 14.6% | 20.8% | 8.8% | 7.6% |
| May 2026 | 50.6% | 15.3% | 18% | 9.5% | 6.6% |
| Jun 2026 | 50.4% | 15.2% | 18% | 9.9% | 6.6% |
| Jul 2026 | 43.6% | 16% | 18.9% | 13% | 8.5% |
| Aug 2026 | 45.7% | 16.9% | 16.2% | 12.3% | 8.9% |
| Sep 2026 | — | — | — | — | — |
How has the Mailgun and Postmark comparison changed over the last 12 months?
3 findings
- The lead changed hands once in the 11 months ending August 2026: Postmark took it in August 2026.
- Across the 11 months ending August 2026, Mailgun’s estimated Share of Search among email API platforms worldwide moved from 20.6% to 16.2%, and its estimated monthly branded searches moved from 110K to 74.2K.
- Across the 11 months ending August 2026, Postmark’s estimated Share of Search among email API platforms worldwide moved from 11.9% to 16.9%, and its estimated monthly branded searches moved from 63.5K to 77.3K.
How did search popularity change for email API platforms worldwide in August 2026?
2 changes
In August 2026, Postmark overtook Mailgun to rank 2nd among email API platforms worldwide, at 16.9%.
In August 2026, Mailgun lost estimated Share of Search among email API platforms worldwide, from 18.9% to 16.2%.
How each brand is measured
Brandwave collects information about searches that people make online using Mailgun’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.
Put your own brand in this comparison
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