Sites using Premium SMTP
Outbound mail relay and spam filtering service.
Found via: Product Hunt 2 · Hacker News 1 · PeerPush 1 · StackScope Discovery (Indie) 2 · StackScope Wider Web 5
Figures on this page reflect launches found via StackScope Discovery only. The "Found via" counts above always show every source. Reset
Premium SMTP has been detected on 2 launches since first appearing in July 2026. Most recent detection: Livraije - Vos livraisons en un clic, on July 12, 2026.
It's most commonly paired with Cloudflare DNS, HTTP/3, and Cloudflare.
Share of new launches using Premium SMTP
Each dot is one launch day. Line is the 7-day rolling average. Chart starts at first detection.
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
|
0.04% | 29.17% | |
| #2 |
MailSpamProtection
|
0.04% | 27.08% | |
| #3 | SpamExperts | 0.02% | 16.67% | |
| #4 |
AntiSpamCloud
|
0.02% | 14.58% | |
| #5 |
Proofpoint Essentials
|
0.02% | 12.50% | |
| … | ||||
| #7 | Premium SMTP Current page | 0.01% | 4.17% | |
Percentages show adoption among launches found via StackScope Discovery: the share of all such launches, and of those using any Email Security tool. All 15 in Email Security →
Often used with
| Tool | Launches |
|---|---|
Cloudflare DNS
|
2 |
| HTTP/3 | 2 |
Cloudflare
|
2 |
Lucide Icons
|
1 |
Next.js
|
1 |
Tools most often detected on the same launches as Premium SMTP.
