Sites using SMTP.com
Transactional email delivery service.
Get told when a new site ships with SMTP.com.
Stackdar watches every launch we detect and sends you the ones using SMTP.com, by email, Slack or webhook. On every plan, from £15 a month.
See how alerts work361 sites
347 found by StackScope, 14 via launch platforms
- StackScope Wider Web 330
- StackScope Discovery (Indie) 17
- Product Hunt 12
- PeerPush 2
SMTP.com has been detected on 361 launches we've crawled. The 7-day rolling share is 0.0%, roughly steady week on week. Most recent detection: DD Client Docket: The Secure Client Portal Built for Law Firms, today.
It's most commonly paired with Google Search Console, Google Tag Manager, and Cloudflare. By product type, the launches using it are most often Finance (39%), Health (34%), and E-commerce (16%). By domain ending, launches using it are 8.5 times as likely as the average launch to live on a .org domain. The 14 scored launches using SMTP.com average a StackScope score of 6.6 out of 10, against 6.4 across all launches we score.
What kind of products ship with SMTP.com
222 launches
Domain endings using SMTP.com
355 sites
- .com 70.99%
- .org 16.62%
- .net 2.54%
- .ca 1.69%
- .ai 1.41%
- .site 1.41%
- .app 1.13%
- .online 1.13%
- .au 0.56%
- .co 0.56%
- .io 0.56%
- .nz 0.28%
Share of new sites using SMTP.com
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 | – |
Resend
|
5.48% | 64.07% |
| #2 | ▲1 |
SendGrid
|
0.66% | 7.76% |
| #3 | ▼2 |
Amazon SES
|
0.65% | 7.61% |
| #4 | ▲1 |
MailChannels
|
0.52% | 6.02% |
| #5 | – |
Mail.Baby
|
0.44% | 5.16% |
| … | ||||
| #21 | ▲5 | SMTP.com Current page | 0.01% | 0.17% |
Percentages show adoption among indie launches: the share of all analysed launches, and of launches using any Transactional Email tool.Among August launches it ranked #20 in Transactional Email, up from #25 in July. All 148 in Transactional Email →
Often used with
| Tool | Launches |
|---|---|
Google Search Console
|
11 |
Google Tag Manager
|
10 |
Cloudflare
|
9 |
Cloudflare DNS
|
8 |
Google Analytics
|
8 |
Tools most often detected on the same launches as SMTP.com.
Recent launches we can show
31 of the 361 sites using SMTP.com are product launches we list individually. The other 330 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
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The StackScope API serves all 361 sites using SMTP.com, filterable and exportable, from £15 a month.