# Microsoft SNDS alternatives: what AI models name instead, November 2026

Gane Index, November 2026 Edition. 224 of the 252 answers in the 1 category where Microsoft SNDS holds a standing named it neither first nor as an alternative; these are the first choices those answers made. Page: https://www.gane.ai/index/gtm/vendors/microsoft-snds/alternatives

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

- GlockApps: 45
- Validity Everest: 29
- Google Postmaster Tools: 12
- Sender: 12
- Instantly: 8
- Litmus: 8

## Email deliverability and testing tools

**Small business**: 77 of 84 answers did not name Microsoft SNDS (Microsoft SNDS is #14 of 15 at 0%).

- GlockApps: first choice in 19 of those 77
- Sender: first choice in 7 of those 77
- Google Postmaster Tools: first choice in 6 of those 77
- Instantly: first choice in 6 of those 77
- Mail-Tester: first choice in 5 of those 77
- MXToolbox: first choice in 4 of those 77
- Brevo: first choice in 3 of those 77
- MailerLite: first choice in 3 of those 77

**Mid-market**: 74 of 84 answers did not name Microsoft SNDS (Microsoft SNDS is #11 of 19 at 0%).

- GlockApps: first choice in 23 of those 74
- Google Postmaster Tools: first choice in 6 of those 74
- Sender: first choice in 5 of those 74
- Litmus: first choice in 4 of those 74
- Allegrow: first choice in 2 of those 74
- Folderly: first choice in 2 of those 74
- HubSpot Sales Hub: first choice in 2 of those 74
- MXToolbox: first choice in 2 of those 74

**Enterprise**: 73 of 84 answers did not name Microsoft SNDS (Microsoft SNDS is #11 of 17 at 0%).

- Validity Everest: first choice in 29 of those 73
- Validity Engage: first choice in 7 of those 73
- Litmus: first choice in 4 of those 73
- GlockApps: first choice in 3 of those 73
- Inbox Monster: first choice in 3 of those 73
- Mailgun Optimize: first choice in 3 of those 73
- Instantly: first choice in 2 of those 73
- Mailgun: first choice in 2 of those 73

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