# Mailtrap alternatives: what AI models name instead, October 2026

GTM AI Recommendation Index, October 2026 Edition. 214 of the 252 answers in the 1 category where Mailtrap holds a standing named it neither first nor as an alternative; these are the first choices those answers made. Page: https://gtm-ai-index.com/vendors/mailtrap/alternatives/

## Named instead, most often (every category and segment added)

- GlockApps: 47
- Validity Everest: 29
- Google Postmaster Tools: 17
- Litmus: 8
- MXToolbox: 8
- MailReach: 7

## Email deliverability and testing tools

**Small business**: 70 of 84 answers did not name Mailtrap (Mailtrap is #10 of 15 at 2%).

- GlockApps: first choice in 20 of those 70
- Google Postmaster Tools: first choice in 11 of those 70
- MXToolbox: first choice in 6 of those 70
- Litmus: first choice in 4 of those 70
- MailerCheck: first choice in 4 of those 70
- Instantly: first choice in 3 of those 70
- Mail-Tester: first choice in 3 of those 70
- MailReach: first choice in 3 of those 70

**Mid-market**: 67 of 84 answers did not name Mailtrap (Mailtrap is #9 of 12 at 2%).

- GlockApps: first choice in 23 of those 67
- Google Postmaster Tools: first choice in 6 of those 67
- MailReach: first choice in 4 of those 67
- Microsoft SNDS: first choice in 3 of those 67
- MXToolbox: first choice in 2 of those 67
- Mail-Tester: first choice in 2 of those 67
- Yahoo Sender Hub: first choice in 2 of those 67
- Allegrow: first choice in 1 of those 67

**Enterprise**: 77 of 84 answers did not name Mailtrap (Mailtrap is #13 of 14 at 0%).

- Validity Everest: first choice in 29 of those 77
- Everest: first choice in 4 of those 77
- GlockApps: first choice in 4 of those 77
- Litmus: first choice in 4 of those 77
- Validity Engage: first choice in 4 of those 77
- Instantly: first choice in 3 of those 77
- Inbox Monster: first choice in 2 of those 77
- Mailgun: first choice in 2 of those 77

Published under CC BY 4.0. The output is the models' output; nothing here is a recommendation by the index.