Housecat is an email inbox running on a single-tenant agent computer with a durable workflow engine and connections to the tools you actually use — Gmail, Slack, GitHub, and more.
We're building an inbox for the age of AI and looking for more beta users to help shape the future of email.
Notion is closing Notion Mail on September 22, 2026. Here's what's happening, what it means for your email and data, and an honest look at the alternatives.