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Sites using Postmark

148 launches via all sources Category: Transactional Email #10 of 66 in Transactional Email Tracked since Apr 2026 Last seen: Jul 18, 2026 Website: postmarkapp.com

ActiveCampaign Postmark transactional email API.

Found via: Product Hunt 93 · Hacker News 16 · PeerPush 22 · StackScope Discovery (Indie) 17 · StackScope Wider Web 19

View: Launch platforms All sources StackScope Discovery StackScope Wider Web

Figures on this page reflect launches found via All sources only. The "Found via" counts above always show every source. Reset

Last 7 days 0.1% -0.0pp
Most used with Google Search Console, HSTS, Tailwind CSS
Top product types Productivity, Developer Tools, Marketing
Green hosting 47% vs 44% avg

Postmark has been detected on 148 launches we've crawled, with 31 of those in July 2026 (0.1% of the month's launches so far). The 7-day rolling share is 0.1%, roughly steady week on week. Most recent detection: OneUp Networks, today.

It's most commonly paired with Google Search Console, HSTS, and Tailwind CSS. By product type, the launches using it are most often Productivity (22%), Developer Tools (19%), and Marketing (16%). By estimated origin, the United States leads (44%), ahead of the United Kingdom (11%).

What kind of products ship with Postmark

108 launches

Productivity
22.22%
Developer Tools
18.52%
Marketing
15.74%
AI
10.19%
Finance
7.41%
Education
5.56%
Social
4.63%
E-commerce
3.70%
Health
3.70%
Content
2.78%
Crypto
2.78%
Games
1.85%
Hiring & HR
0.93%

Countries that use Postmark

Estimated origin for 57 of 148 launches

  • United States United States 43.86%
  • United Kingdom United Kingdom 10.53%
  • Italy Italy 7.02%
  • Germany Germany 5.26%
  • Canada Canada 3.51%
  • India India 3.51%
  • Austria Austria 1.75%
  • Bulgaria Bulgaria 1.75%
  • China China 1.75%
  • Denmark Denmark 1.75%
  • Estonia Estonia 1.75%
  • Spain Spain 1.75%
  • France France 1.75%

Share of new launches using Postmark

Each dot is one launch day. Line is the 7-day rolling average.

0.1%
last 7 days
-0.0pp vs prior week
0.1%
July so far
31 of 30,804 launches
148
launches all time
since Apr 2026
Postmark daily detection trend 5% 2% 0% May Jun Jul Jul 1, 2026: Adoption figures now count launches from launch platforms. Use the source view to include StackScope Discovery. Jul 3, 2026: Email provider detection improved: providers identified from mail configuration are now caught on a site's first crawl. Earlier data may slightly undercount. Apr 19 · 2 / 392 = 0.5% Apr 20 · 2 / 620 = 0.3% Apr 21 · 5 / 835 = 0.6% Apr 22 · 2 / 721 = 0.3% Apr 23 · 0 / 603 = 0.0% Apr 24 · 1 / 553 = 0.2% Apr 25 · 1 / 420 = 0.2% Apr 26 · 1 / 377 = 0.3% Apr 27 · 1 / 529 = 0.2% Apr 28 · 4 / 836 = 0.5% Apr 29 · 0 / 658 = 0.0% Apr 30 · 0 / 573 = 0.0% May 1 · 2 / 568 = 0.4% May 2 · 0 / 368 = 0.0% May 3 · 1 / 347 = 0.3% May 4 · 0 / 536 = 0.0% May 5 · 3 / 855 = 0.4% May 6 · 3 / 671 = 0.4% May 7 · 0 / 624 = 0.0% May 8 · 1 / 597 = 0.2% May 9 · 0 / 430 = 0.0% May 10 · 1 / 350 = 0.3% May 11 · 3 / 536 = 0.6% May 12 · 1 / 797 = 0.1% May 13 · 4 / 688 = 0.6% May 14 · 2 / 625 = 0.3% May 15 · 2 / 543 = 0.4% May 16 · 1 / 407 = 0.2% May 17 · 1 / 367 = 0.3% May 18 · 0 / 567 = 0.0% May 19 · 3 / 848 = 0.4% May 20 · 2 / 674 = 0.3% May 21 · 0 / 608 = 0.0% May 22 · 3 / 547 = 0.5% May 23 · 0 / 378 = 0.0% May 24 · 0 / 341 = 0.0% May 25 · 1 / 535 = 0.2% May 26 · 0 / 879 = 0.0% May 27 · 2 / 683 = 0.3% May 28 · 1 / 578 = 0.2% May 29 · 1 / 487 = 0.2% May 30 · 1 / 377 = 0.3% May 31 · 0 / 369 = 0.0% Jun 1 · 0 / 621 = 0.0% Jun 2 · 1 / 928 = 0.1% Jun 3 · 2 / 711 = 0.3% Jun 4 · 0 / 599 = 0.0% Jun 5 · 4 / 579 = 0.7% Jun 6 · 0 / 437 = 0.0% Jun 7 · 2 / 405 = 0.5% Jun 8 · 1 / 512 = 0.2% Jun 9 · 1 / 873 = 0.1% Jun 10 · 1 / 725 = 0.1% Jun 11 · 3 / 573 = 0.5% Jun 12 · 2 / 446 = 0.4% Jun 13 · 0 / 381 = 0.0% Jun 14 · 1 / 346 = 0.3% Jun 15 · 1 / 532 = 0.2% Jun 16 · 3 / 1048 = 0.3% Jun 17 · 1 / 899 = 0.1% Jun 18 · 0 / 672 = 0.0% Jun 19 · 1 / 545 = 0.2% Jun 20 · 0 / 443 = 0.0% Jun 21 · 1 / 385 = 0.3% Jun 22 · 3 / 575 = 0.5% Jun 23 · 1 / 900 = 0.1% Jun 24 · 1 / 740 = 0.1% Jun 25 · 1 / 619 = 0.2% Jun 26 · 0 / 533 = 0.0% Jun 27 · 0 / 433 = 0.0% Jun 28 · 0 / 385 = 0.0% Jun 29 · 2 / 503 = 0.4% Jun 30 · 0 / 803 = 0.0% Jul 1 · 1 / 799 = 0.1% Jul 2 · 1 / 604 = 0.2% Jul 3 · 2 / 498 = 0.4% Jul 4 · 1 / 411 = 0.2% Jul 5 · 0 / 367 = 0.0% Jul 6 · 0 / 552 = 0.0% Jul 7 · 2 / 984 = 0.2% Jul 8 · 5 / 4315 = 0.1% Jul 9 · 6 / 7280 = 0.1% Jul 10 · 5 / 4865 = 0.1% Jul 11 · 1 / 2012 = 0.0% Jul 12 · 1 / 1979 = 0.1% Jul 13 · 4 / 1961 = 0.2% Jul 14 · 0 / 1909 = 0.0% Jul 15 · 0 / 764 = 0.0% Jul 16 · 0 / 837 = 0.0% Jul 17 · 2 / 667 = 0.3%
Apr 19, 2026 90 days Jul 17, 2026

How StackScope detects technologies

⋮ Jul 1, 2026: Adoption figures now count launches from launch platforms. Use the source view to include StackScope Discovery.

⋮ Jul 3, 2026: Email provider detection improved: providers identified from mail configuration are now caught on a site's first crawl. Earlier data may slightly undercount.

Transactional Email leaders

Tool % of launches % of category
#1 Resend 19.25% 75.29%
#2 Amazon SES 3.40% 13.28%
#3 SendGrid 2.38% 9.30%
#4 Mailgun 1.03% 4.04%
#5 Firebase Trigger Email 0.88% 3.45%
…
#10 Postmark Current page 0.18% 0.69%

Percentages show adoption among launches found via All sources: the share of all such launches, and of those using any Transactional Email tool. All 66 in Transactional Email →

Often used with

Tool Launches
Google Search Console 109
HSTS 99
Tailwind CSS 83
Cloudflare 80
Google Workspace 77

Tools most often detected on the same launches as Postmark.

Most recent of 148 launches using Postmark found via All sources

Screenshot of OneUp Networks, a launch using Postmark OneUp Networks Jul 18, 2026 · score 7.6 Developer Tools Screenshot of JMJ Billings, a launch using Postmark JMJ Billings Jul 17, 2026 · score 7.0 Finance Screenshot of AI Pet Assistant, a launch using Postmark AI Pet Assistant Jul 17, 2026 · score 5.7 United States Health amariz.me Jul 13, 2026 Social Datapolium · Análisis cuantitativo de activos financieros Jul 13, 2026 Finance StoryShooter Jul 13, 2026 Content Screenshot of Motionobj, a launch using Postmark Motionobj Jul 13, 2026 · score 5.7 Productivity Screenshot of CurrencyFreaks, a launch using Postmark CurrencyFreaks Jul 12, 2026 · score 8.1 Screenshot of sinsesgo, a launch using Postmark sinsesgo Jul 11, 2026 · score 7.9 Spain ScoreOrder — Membership management for community music organizations Jul 10, 2026 Parasource Jul 10, 2026 Italy Screenshot of NewIPNow, a launch using Postmark NewIPNow Jul 10, 2026 · score 7.1 United States

Showing the most recent 12 of 148 found via All sources.

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