# Gmail Postmaster Tools: how AI models rank it, November 2026

Gane Index, November 2026 Edition. Named in 1 judge label across 1 category by 1 of 14 models. Page: https://www.gane.ai/index/gtm/vendors/gmail-postmaster-tools

## Standing by category

| Category | Share | Rank | Negative rate | Labels |
|---|---|---|---|---|
| [Email deliverability and testing tools](https://www.gane.ai/index/gtm/marketing/email-deliverability-and-testing/index.md) | 0% | 87 | 0% | 1 |

## By model

| Model | First choice | Alternative | Mention | Warning | Labels |
|---|---|---|---|---|---|
| Claude Haiku 4.5 | 0 | 0 | 0 | 0 | 0 |
| GPT-5.4 mini | 0 | 0 | 0 | 0 | 0 |
| Gemini 3.5 Flash | 0 | 0 | 0 | 0 | 0 |
| Perplexity Sonar | 0 | 0 | 0 | 0 | 0 |
| Grok 4.20 | 0 | 0 | 0 | 0 | 0 |
| Mistral Small | 0 | 0 | 0 | 0 | 0 |
| DeepSeek V4 Flash | 0 | 0 | 0 | 0 | 0 |
| Llama 4 Maverick | 0 | 0 | 0 | 0 | 0 |
| Qwen 3.7 Flash | 0 | 0 | 0 | 0 | 0 |
| Kimi K2 | 0 | 0 | 0 | 0 | 0 |
| GLM 4.7 FlashX | 0 | 0 | 0 | 0 | 0 |
| MiniMax M2.5 | 0 | 0 | 0 | 0 | 0 |
| GPT-6 Luna | 0 | 0 | 1 | 0 | 1 |
| Muse Glimmer 30B | 0 | 0 | 0 | 0 | 0 |

## Sources returned with these answers

The sites and pages cited by the answers that named Gmail Postmaster Tools, from 3 of the 3 answers that named it (only the models that return a source list).

### Domains cited

- support.google.com: 2
- docs.aws.amazon.com: 1
- g2.com: 1
- guideflow.com: 1
- inboxarmy.com: 1
- mailtester.com: 1
- myemailverifier.com: 1
- omnisend.com: 1
- onsaas.me: 1
- overloop.com: 1

### Pages cited

- https://support.google.com/mail/answer/14289100: 2
- https://docs.aws.amazon.com/ses/latest/dg/vdm-gd-inbox-placement-tests.html: 1
- https://g2.com/categories/email-marketing/small-business: 1
- https://guideflow.com/blog/email-testing-software: 1
- https://inboxarmy.com/blog/12-best-email-deliverability-tools: 1
- https://mailtester.com/blog/email-delivery-diagnostics-single-provider-inbox-occurrence: 1
- https://myemailverifier.com/blog/email-deliverability-tools: 1
- https://omnisend.com/blog/email-deliverability-tools: 1

## Record

- Method: https://www.gane.ai/index/gtm/methodology
- License: CC BY 4.0. Cite as Gane Index, November 2026 Edition, www.gane.ai/index/gtm.