Does Harriet use Mailgun?
Yes
We hold strong evidence for this.
- The company names it in its own subprocessor list, a statement that this vendor handles its customers' data.
How we know
About Harriet
Harriet provides a platform with strategy and a deployment team to help organizations adopt AI across their workflows. It serves companies in financial services, healthtech, software, education, legal, and manufacturing.
Summarized from its homepage on 10 Nov 2026.
What else Harriet uses
Harriet has evidence for 21 vendors. The strongest:
Amazon Web Services
Anthropic
Attio
Azure OpenAI
Baseten
Google
Google Gemini
Groq
Heroku
Other companies using Mailgun
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- Every company and vendor, with its public source
- 100 API calls a month, plus MCP and the Chrome extension
- Work email only. No card, no sales call