| Brand | Marketing | Other ESPs | Setup | Obs | Last seen |
|---|---|---|---|---|---|
| — | Amazon SES 17 | 90 | 17 | 2026-06-29 | |
| — | SendGrid 44 | 80 | 44 | 2026-06-22 | |
| HubSpot 50 | SendGrid 39 | 100 | 89 | 2026-06-26 | |
| HubSpot 6 | SendGrid 6 | 73 | 12 | 2026-06-16 | |
| Brevo 14 | — | 95 | 14 | 2026-06-01 | |
| — | Amazon SES 19 | 85 | 19 | 2026-05-23 | |
| Kit 13 | — | 73 | 13 | 2026-05-22 | |
| Seguno 828 | SparkPost 92 Shopify Messaging 16 Intercom 12 Amazon SES 11 Mailgun 1 | 100 | 960 | 2026-06-26 | |
| Sailthru 36 | — | 95 | 36 | 2026-06-29 | |
| Customer.io 24 | Mailgun 22 | 90 | 46 | 2026-06-29 | |
| Kit 36 | — | 80 | 36 | 2026-06-18 | |
| Kit 133 | Mailtrap 36 Brevo 3 Mailchimp 2 | 80 | 174 | 2026-06-30 | |
| Brevo 470 | Postmark 31 CleverReach 1 | 90 | 502 | 2026-06-29 | |
| Beehiiv 22 | — | 95 | 22 | 2026-06-29 | |
| Beehiiv 166 | — | 95 | 166 | 2026-06-30 | |
| — | Amazon SES 54 | 95 | 54 | 2026-06-29 | |
| Kit 11 | — | 73 | 11 | 2026-06-23 | |
| HubSpot 3 | Postmark 14 | 77 | 17 | 2026-06-22 | |
| Substack 13 | — | 85 | 13 | 2026-06-25 | |
| Substack 19 | — | 85 | 19 | 2026-06-29 | |
| Kit 13 | — | 73 | 13 | 2026-06-15 | |
| Beehiiv 10 | — | 80 | 10 | 2026-05-20 | |
| Kit 18 | Postmark 1 | 73 | 19 | 2026-06-24 | |
| Kit 13 | — | 73 | 13 | 2026-06-22 | |
| Substack 17 | — | 85 | 17 | 2026-06-30 | |
| Substack 24 | — | 85 | 24 | 2026-06-23 | |
| Beehiiv 11 | — | 95 | 11 | 2026-06-15 | |
| Beehiiv 12 | — | 80 | 12 | 2026-06-29 | |
| Kit 15 | — | 73 | 15 | 2026-06-26 | |
| Kit 85 | — | 85 | 85 | 2026-06-28 | |
| Drip 48 | — | 73 | 48 | 2026-06-25 | |
| Beehiiv 21 | — | 80 | 21 | 2026-06-16 | |
| Kit 34 | — | 73 | 34 | 2026-06-25 | |
| Substack 11 | — | 85 | 11 | 2026-06-29 | |
| Kit 11 | — | 73 | 11 | 2026-05-22 | |
| Kit 15 | — | 73 | 15 | 2026-06-20 | |
| HubSpot 26 | — | 80 | 26 | 2026-06-28 | |
| Substack 58 | — | 85 | 58 | 2026-06-29 | |
| MailerLite 21 | — | 80 | 21 | 2026-06-12 | |
| Substack 12 | — | 85 | 12 | 2026-06-28 | |
| Beehiiv 28 | — | 80 | 28 | 2026-06-25 | |
| — | Mailgun 40 | 80 | 40 | 2026-06-25 | |
| Substack 14 | — | 85 | 14 | 2026-06-25 | |
| Substack 33 | — | 85 | 33 | 2026-06-26 | |
| Beehiiv 11 | Brevo 1 | 73 | 12 | 2026-06-23 | |
| Brevo 1 | SendGrid 25 | 80 | 26 | 2026-06-29 | |
| Substack 23 | — | 85 | 23 | 2026-06-24 | |
| Substack 12 | — | 85 | 12 | 2026-06-25 | |
| HubSpot 10 | — | 80 | 10 | 2026-06-17 | |
| Kit 32 | — | 85 | 32 | 2026-06-16 | |
| Brevo 12 | — | 73 | 12 | 2026-06-23 | |
| Omnisend 17 | Klaviyo 14 | 85 | 31 | 2026-06-22 | |
| Substack 13 | — | 85 | 13 | 2026-06-30 | |
| Kit 21 | — | 73 | 21 | 2026-06-29 | |
| Substack 34 | — | 85 | 34 | 2026-06-11 | |
| Kit 13 | SendGrid 1 | 73 | 14 | 2026-06-26 |
Email Detective — ESP Tracker
by EmailTooltester · crowdsourced from Email Detective users
56brands shown
127ESPs detected
118,131observations
545active users (30d)