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Sites using SMTP2GO

Cloud transactional email and SMTP relay service.

#23 of 148 in Transactional Email Tracked since Apr 2026 Last seen: Sep 1, 2026 Website: smtp2go.com
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268 sites

226 found by StackScope, 42 via launch platforms

StackScope Wider Web 158 StackScope Discovery (Indie) 68 Product Hunt 34 Hacker News 3 PeerPush 3 Other 2
  • StackScope Wider Web 158
  • StackScope Discovery (Indie) 68
  • Product Hunt 34
  • Hacker News 3
  • PeerPush 3
  • Other 2
View: All sites All launches Launch platforms StackScope Discovery StackScope Wider Web
Last 7 days 0.0% +0.0pp
Most used with Google Search Console, Cloudflare DNS, Google Analytics
Top product types Developer Tools, Education, Health
Green hosting 55% vs 45% avg

SMTP2GO has been detected on 268 launches we've crawled. The 7-day rolling share is 0.0%, roughly steady week on week. Most recent detection: Envelín — Wedding Invitations, RSVPs & Gift Registry, today.

It's most commonly paired with Google Search Console, Cloudflare DNS, and Google Analytics. By product type, the launches using it are most often Developer Tools (19%), Education (15%), and Health (12%). The 42 scored launches using SMTP2GO average a StackScope score of 7.4 out of 10, against 6.4 across all launches we score.

What kind of products ship with SMTP2GO

108 launches

Developer Tools
18.52%
Education
14.81%
Health
12.04%
Marketing
8.33%
Finance
7.41%
Productivity
7.41%
AI
6.48%
Content
5.56%
E-commerce
5.56%
Hiring & HR
4.63%
Games
3.70%
Crypto
1.85%
Design
1.85%
Social
1.85%

Domain endings using SMTP2GO

268 sites

  • .com 47.76%
  • .ca 7.46%
  • .app 7.09%
  • .net 4.48%
  • .uk 4.10%
  • .io 3.73%
  • .dev 2.99%
  • .online 2.61%
  • .org 2.61%
  • .ai 2.24%
  • .co 2.24%
  • .nz 2.24%
  • .me 1.87%
  • .ch 1.49%

Country

14 of 268 sites, where we are confident of the country.

  • United States United States 42.86%
  • United Kingdom United Kingdom 21.43%
  • Canada Canada 7.14%
  • Hong Kong SAR China Hong Kong SAR China 7.14%
  • India India 7.14%
  • New Zealand New Zealand 7.14%
  • Saudi Arabia Saudi Arabia 7.14%

Share of new sites using SMTP2GO

Each dot is one launch day. Line is the 7-day rolling average; weekly averages before June 2026.

0.0%
last 7 days
+0.0pp vs prior week
268
sites all time
since Apr 2026
SMTP2GO daily detection trend Before 8 July 2026: launch platforms only. We began crawling the wider web on this date, so the cohort this share is measured against changes here. 5% 2% 0% Apr May Jun Jul Aug 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. Weekly averages before this point, daily after. Jun 3 · 1 / 714 = 0.1% Jun 4 · 0 / 599 = 0.0% Jun 5 · 0 / 581 = 0.0% Jun 6 · 0 / 436 = 0.0% Jun 7 · 0 / 404 = 0.0% Jun 8 · 0 / 515 = 0.0% Jun 9 · 2 / 876 = 0.2% Jun 10 · 0 / 722 = 0.0% Jun 11 · 0 / 577 = 0.0% Jun 12 · 1 / 449 = 0.2% Jun 13 · 0 / 380 = 0.0% Jun 14 · 0 / 345 = 0.0% Jun 15 · 0 / 532 = 0.0% Jun 16 · 0 / 1052 = 0.0% Jun 17 · 0 / 907 = 0.0% Jun 18 · 0 / 674 = 0.0% Jun 19 · 0 / 547 = 0.0% Jun 20 · 0 / 443 = 0.0% Jun 21 · 0 / 383 = 0.0% Jun 22 · 0 / 576 = 0.0% Jun 23 · 0 / 900 = 0.0% Jun 24 · 0 / 737 = 0.0% Jun 25 · 1 / 618 = 0.2% Jun 26 · 0 / 534 = 0.0% Jun 27 · 0 / 431 = 0.0% Jun 28 · 0 / 383 = 0.0% Jun 29 · 1 / 503 = 0.2% Jun 30 · 0 / 801 = 0.0% Jul 1 · 0 / 795 = 0.0% Jul 2 · 0 / 604 = 0.0% Jul 3 · 0 / 499 = 0.0% Jul 4 · 0 / 411 = 0.0% Jul 5 · 0 / 367 = 0.0% Jul 6 · 0 / 551 = 0.0% Jul 7 · 0 / 1171 = 0.0% Jul 8 · 3 / 12590 = 0.0% Jul 9 · 4 / 23745 = 0.0% Jul 10 · 3 / 22552 = 0.0% Jul 11 · 0 / 15979 = 0.0% Jul 12 · 2 / 20291 = 0.0% Jul 13 · 1 / 20923 = 0.0% Jul 14 · 2 / 20409 = 0.0% Jul 15 · 1 / 17242 = 0.0% Jul 16 · 2 / 14265 = 0.0% Jul 17 · 2 / 19732 = 0.0% Jul 18 · 1 / 22700 = 0.0% Jul 19 · 4 / 26075 = 0.0% Jul 20 · 3 / 22586 = 0.0% Jul 21 · 3 / 21650 = 0.0% Jul 22 · 5 / 23202 = 0.0% Jul 23 · 1 / 16862 = 0.0% Jul 24 · 2 / 12853 = 0.0% Jul 25 · 0 / 8947 = 0.0% Jul 26 · 4 / 19980 = 0.0% Jul 27 · 0 / 33869 = 0.0% Jul 28 · 7 / 38221 = 0.0% Jul 29 · 7 / 50105 = 0.0% Jul 30 · 10 / 43954 = 0.0% Jul 31 · 7 / 51114 = 0.0% Aug 1 · 3 / 50496 = 0.0% Aug 2 · 7 / 49662 = 0.0% Aug 3 · 3 / 48190 = 0.0% Aug 4 · 4 / 37326 = 0.0% Aug 5 · 2 / 32708 = 0.0% Aug 6 · 8 / 36583 = 0.0% Aug 7 · 4 / 37890 = 0.0% Aug 8 · 2 / 39682 = 0.0% Aug 9 · 5 / 34208 = 0.0% Aug 10 · 7 / 28849 = 0.0% Aug 11 · 7 / 32021 = 0.0% Aug 12 · 2 / 33483 = 0.0% Aug 13 · 6 / 49916 = 0.0% Aug 14 · 4 / 51431 = 0.0% Aug 15 · 5 / 51493 = 0.0% Aug 16 · 3 / 51817 = 0.0% Aug 17 · 2 / 41434 = 0.0% Aug 18 · 7 / 53848 = 0.0% Aug 19 · 5 / 49419 = 0.0% Aug 20 · 4 / 66837 = 0.0% Aug 21 · 5 / 90363 = 0.0% Aug 22 · 7 / 91520 = 0.0% Aug 23 · 6 / 90237 = 0.0% Aug 24 · 2 / 78899 = 0.0% Aug 25 · 4 / 69251 = 0.0% Aug 26 · 12 / 65060 = 0.0% Aug 27 · 9 / 83371 = 0.0% Aug 28 · 6 / 83348 = 0.0% Aug 29 · 5 / 84167 = 0.0% Aug 30 · 8 / 92145 = 0.0% Aug 31 · 7 / 89076 = 0.0%
Mar 30, 2026 90 days Aug 31, 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 5.47% 64.07%
#2 ▲1 SendGrid 0.66% 7.76%
#3 ▼2 Amazon SES 0.65% 7.61%
#4 ▲1 MailChannels 0.51% 6.02%
#5 – Mail.Baby 0.44% 5.16%
…
#23 ▼5 SMTP2GO Current page 0.01% 0.12%

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 #23 in Transactional Email, down from #18 in July. All 148 in Transactional Email →

Often used with

Tool Launches
Google Search Console 31
Cloudflare DNS 25
Google Analytics 23
HSTS 22
HTTP/3 18

Tools most often detected on the same launches as SMTP2GO.

Recent launches we can show

110 of the 268 sites using SMTP2GO are product launches we list individually. The other 158 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

Envelín — Wedding Invitations, RSVPs & Gift Registry Sep 1, 2026 Que la IA diga tu nombre · Nómbrame Aug 31, 2026 AI Screenshot of Sidify Music Converter, a launch using SMTP2GO Sidify Music Converter Aug 31, 2026 · score 7.6 Hong Kong SAR China Content LPN Study Planet — LPN Study Planet Aug 30, 2026 Education PazaWise — The AI CFO for Nordic & European businesses Aug 30, 2026 Finance NFC Kart — Dijital Kartvizit Aug 30, 2026 Free100InfluencerLeads: 300,000+ influencer contacts, 100 free every day Aug 28, 2026 Marketing Print Mate — Cloud Print Fleet Management & Driver Deployment for MSPs Aug 27, 2026 ChangeGuard — Website change monitoring Aug 27, 2026 Developer Tools SASclock — Modern Employee Time Clock & Workforce Management Aug 27, 2026 Hiring & HR LiveWellOS · An assistant for the rest of your life Aug 26, 2026 Health tela — the agent-native team wiki your AI reasons over Aug 26, 2026 AI

Showing the most recent 12 of 110.

The StackScope API serves all 268 sites using SMTP2GO, filterable and exportable, from £15 a month.

Something not look right? If a technology shown here is wrong or out of date, email [email protected] and we'll review it.