Independent German business email provider focused on privacy and PGP encryption.
Get told when a new site ships with Mailbox.org.
Stackdar watches every launch we detect and sends you the ones using Mailbox.org, by email, Slack or webhook. On every plan, from £15 a month.
See how alerts work310 sites
283 found by StackScope, 27 via launch platforms
- StackScope Wider Web 190
- StackScope Discovery (Indie) 93
- Product Hunt 14
- Hacker News 7
- PeerPush 6
Mailbox.org has been detected on 310 launches we've crawled. The 7-day rolling share is 0.0%, roughly steady week on week. Most recent detection: Import, plan and share recipes | Palato, today.
It's most commonly paired with Google Search Console, HSTS, and Tailwind CSS. By product type, the launches using it are most often Developer Tools (22%), Productivity (21%), and Health (9%). By domain ending, launches using it are 2.6 times as likely as the average launch to live on a .dev domain. The 27 scored launches using Mailbox.org average a StackScope score of 7.0 out of 10, against 6.4 across all launches we score.
What kind of products ship with Mailbox.org
121 launches
Domain endings using Mailbox.org
310 sites
- .com 37.74%
- .app 12.58%
- .dev 7.74%
- .de 7.42%
- .io 6.45%
- .org 5.81%
- .ai 3.87%
- .net 3.55%
- .me 1.61%
- .cloud 1.29%
- .co 0.97%
- .se 0.97%
- .uk 0.97%
- .ca 0.65%
Share of new sites using Mailbox.org
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.
Email Hosting leaders
| Tool | % of launches | % of category | ||
|---|---|---|---|---|
| #1 | ▼1 |
|
6.68% | 19.51% |
| #2 | ▼1 |
|
6.62% | 19.34% |
| #3 | ▲2 |
|
6.42% | 18.77% |
| #4 | ▼1 |
|
1.88% | 5.49% |
| #5 | ▲1 |
|
1.77% | 5.18% |
| … | ||||
| #121 | ▼42 |
|
0.01% | 0.04% |
Percentages show adoption among indie launches: the share of all analysed launches, and of launches using any Email Hosting tool.Among August launches it ranked #131 in Email Hosting, down from #89 in July. All 3060 in Email Hosting →
Recent launches we can show
120 of the 310 sites using Mailbox.org are product launches we list individually. The other 190 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
Showing the most recent 12 of 120.
The StackScope API serves all 310 sites using Mailbox.org, filterable and exportable, from £15 a month.