Sites using Kaopu Mail 
Chinese enterprise email security platform providing anti-spam cloud gateway, secure relay, archiving and phishing simulation.
3 sites
2 found by StackScope, 1 via launch platforms
- StackScope Wider Web 2
- Product Hunt 1
Kaopu Mail has been detected on 3 launches since first appearing in May 2026. Most recent detection: Brother Filtration CTO vs GAS, 3 days ago.
It's most commonly paired with nginx, jQuery, and Google Search Console.
Share of new sites using Kaopu Mail
Each dot is one launch day. Line is the 7-day rolling average; weekly averages before June 2026. Chart starts at first detection.
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 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 Security leaders
| Tool | % of launches | % of category | ||
|---|---|---|---|---|
| #1 | – |
DNSSmartHost
|
0.27% | 55.41% |
| #2 | – |
MailSpamProtection
|
0.26% | 54.06% |
| #3 | – |
AntiSpamCloud
|
0.09% | 19.61% |
| #4 | ▲2 | Premium SMTP | 0.02% | 4.14% |
| #5 | ▼1 | SpamExperts | 0.02% | 3.17% |
| … | ||||
| #68 |
Kaopu Mail
Current page
|
<0.01% | 0.02% | |
Percentages show adoption among indie launches: the share of all analysed launches, and of launches using any Email Security tool. All 148 in Email Security →
Often used with
| Tool | Sites |
|---|---|
nginx
|
2 |
jQuery
|
2 |
Google Search Console
|
1 |
Brevo
|
1 |
Cloudflare DNS
|
1 |
Tools most often detected on the same sites as Kaopu Mail.
Recent launches we can show
1 of the 3 sites using Kaopu Mail are product launches we list individually. The other 2 are sites we found crawling the wider web: they count towards the figures above, but we do not publish them one by one.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
The StackScope API serves all 3 sites using Kaopu Mail, filterable and exportable, from £15 a month.