Transactional email API and SMTP service from MailerLite.
Get told when a new site ships with MailerSend.
Stackdar watches every launch we detect and sends you the ones using MailerSend, by email, Slack or webhook. On every plan, from £15 a month.
See how alerts work735 sites
515 found by StackScope, 220 via launch platforms
- StackScope Wider Web 295
- StackScope Discovery (Indie) 220
- Product Hunt 170
- PeerPush 30
- Hacker News 17
- Other 3
MailerSend has been detected on 735 launches we've crawled. The 7-day rolling share is 0.0%, roughly steady week on week. Most recent detection: Nardela · Encuentra tu florería, yesterday.
It's most commonly paired with Cloudflare DNS, Cloudflare, and HSTS. By product type, the launches using it are most often Productivity (16%), Marketing (13%), and Developer Tools (13%). By estimated origin, the United States leads (40%), ahead of Canada (8%). The 218 scored launches using MailerSend average a StackScope score of 7.3 out of 10, against 6.4 across all launches we score.
What kind of products ship with MailerSend
384 launches
Domain endings using MailerSend
735 sites
- .com 46.94%
- .app 10.61%
- .ai 5.99%
- .io 5.44%
- .online 3.40%
- .tech 2.59%
- .net 2.45%
- .co 2.04%
- .dev 1.90%
- .in 1.90%
- .uk 1.63%
- .org 1.50%
- .ca 1.36%
- .me 1.22%
- .cloud 1.09%
Country
53 of 735 sites, where we are confident of the country.
-
United States 39.62%
-
Canada 7.55%
-
United Kingdom 7.55%
-
Germany 5.66%
-
India 5.66%
-
United Arab Emirates 3.77%
-
Czechia 3.77%
-
Hong Kong SAR China 3.77%
-
Latvia 3.77%
-
Australia 1.89%
-
Azerbaijan 1.89%
-
Bangladesh 1.89%
-
Brazil 1.89%
-
Switzerland 1.89%
-
Estonia 1.89%
Share of new sites using MailerSend
Each dot is one launch day. Line is the 7-day rolling average; weekly averages before June 2026.
The shaded part of the chart is measured against a different set of sites. Until 8 July 2026 we only tracked launches from launch platforms; from that date we crawl the wider web as well. The share is a proportion of whatever we were tracking at the time, so it can step at that line without the technology itself changing. For a single continuous measure, switch to launch platforms.
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 | – |
|
5.40% | 63.13% |
| #2 | ▲1 |
|
0.66% | 7.72% |
| #3 | ▼2 |
|
0.64% | 7.50% |
| #4 | ▲1 |
|
0.52% | 6.05% |
| #5 | – |
|
0.44% | 5.17% |
| … | ||||
| #15 | ▼6 |
|
0.03% | 0.33% |
Percentages show adoption among indie launches: the share of all analysed launches, and of launches using any Transactional Email tool.The most common alternatives to MailerSend among indie launches are Amazon SES and MailChannels.Among August launches it ranked #19 in Transactional Email, down from #13 in July. All 150 in Transactional Email →
Recent launches we can show
440 of the 735 sites using MailerSend are product launches we list individually. The other 295 are sites we found crawling the wider web: they count towards the figures above, but we do not publish them one by one. How StackScope Discovery works
Integro — you, against you
Health
HORNO Network
Showing the most recent 12 of 440.
The StackScope API serves all 735 sites using MailerSend, filterable and exportable, from £15 a month.