Alternatives to SMTP2GO
Other Transactional email and notifications vendors we measure, sorted by how much they publish that SMTP2GO does not. This is a comparison of disclosure, not of features or fitness.
12 shown of 31 that differ from SMTP2GO on at least one criterion we measured for both. Public transparency score, not a product or security rating.
SMTP2GO has 9 gaps in what we could measure: Data processing agreement, Subprocessor list, Certifications named, Uptime SLA with a figure, HTTPS enforced with HSTS, No third-party tracking before consent, security.txt (RFC 9116), Notice before subprocessors change, Named privacy contact. The column “publishes and SMTP2GO does not” is the one that closes them.
| Vendor | Score | Publishes, and SMTP2GO does not | SMTP2GO publishes, and they do not | |
|---|---|---|---|---|
| Resendresend.com | 83/100 | 7 Data processing agreement, Subprocessor list, Certifications named, +4 | 1 Status page with history | Compare |
| Mailosaurmailosaur.com | 74/100 | 6 Subprocessor list, Certifications named, Uptime SLA with a figure, +3 | nothing | Compare |
| Knockknock.app | 65/100 | 4 Data processing agreement, Subprocessor list, HTTPS enforced with HSTS, +1 | 1 Status page with history | Compare |
| Mailtrapmailtrap.io | 48/100 | 4 Data processing agreement, Subprocessor list, Notice before subprocessors change, +1 | 2 Data location stated, Status page with history | Compare |
| Streamgetstream.io | 48/100 | 4 Subprocessor list, Certifications named, HTTPS enforced with HSTS, +1 | 1 Data location stated | Compare |
| OneSignalonesignal.com | 43/100 | 4 Data processing agreement, HTTPS enforced with HSTS, security.txt (RFC 9116), +1 | 2 Data location stated, Status page with history | Compare |
| Ablyably.com | 39/100 | 4 Uptime SLA with a figure, HTTPS enforced with HSTS, security.txt (RFC 9116), +1 | 1 Data location stated | Compare |
| Novunovu.co | 48/100 | 3 Data processing agreement, Certifications named, HTTPS enforced with HSTS | 1 Status page with history | Compare |
| Plunkuseplunk.com | 48/100 | 3 Data processing agreement, Notice before subprocessors change, Named privacy contact | 1 Status page with history | Compare |
| ClickSendclicksend.com | 35/100 | 3 Certifications named, Notice before subprocessors change, Named privacy contact | 1 Data location stated | Compare |
| Couriercourier.com | 52/100 | 2 Subprocessor list, HTTPS enforced with HSTS | nothing | Compare |
| Bentobentonow.com | 43/100 | 2 Subprocessor list, HTTPS enforced with HSTS | 1 Status page with history | Compare |
Only criteria we could measure for both are counted. Where we could measure one and not the other, the row is silent: that would be a statement about our measurement, not about either vendor. Every single result with its source is on the two profiles.