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 7
Figures on this page reflect sites found via StackScope Wider Web only. The "Found via" counts above always show every source. Reset
Premium SMTP has been detected on 7 launches since first appearing in July 2026. Most recent detection was 4 days ago.
It's most commonly paired with Google Fonts, WP Fastest Cache, and Font Awesome.
Share of new launches using Premium SMTP
Each dot is one launch day. Line is the 7-day rolling average.
Email Security leaders
| Tool | % of launches | % of category | ||
|---|---|---|---|---|
| #1 |
DNSSmartHost
|
0.09% | 37.66% | |
| #2 |
MailSpamProtection
|
0.08% | 35.93% | |
| #3 |
AntiSpamCloud
|
0.07% | 30.74% | |
| #4 | SpamExperts | 0.01% | 5.63% | |
| #5 | Premium SMTP Current page | 0.01% | 3.03% |
Percentages show adoption among launches found via StackScope Wider Web: the share of all such launches, and of those using any Email Security tool. All 28 in Email Security →
Often used with
| Tool | Launches |
|---|---|
Google Fonts
|
6 |
| WP Fastest Cache | 6 |
Font Awesome
|
3 |
jQuery
|
3 |
| HTTP/3 | 3 |
Tools most often detected on the same launches as Premium SMTP.
7 sites across the wider web use Premium SMTP
StackScope Wider Web counts newly launched sites that are not indie product launches. They shape the aggregate figures on this page but are never listed individually. How StackScope Discovery works · Back to launches