Notion Shuts Down Notion Mail as Users Shift to AI Agents

Notion announced today it will shut down Notion Mail, its Gmail client, on September 22, ending the email product launched in April 2025. The San Francisco-based company stated more than half of Notion Mail users now manage emails through AI agents without opening their inbox, prompting the decision to focus exclusively on agent-based email workflows. This marks the final closure of Skiff-related email services following Notion's February 2024 acquisition of the encrypted email startup, which saw Skiff's original email service shut down within a year of the deal.

Notion bought Skiff in February 2024, acquiring the encrypted email and productivity software startup. Within a year, Notion shut down Skiff's email service, eliminating @skiff.com email addresses. In April 2025, Notion released Notion Mail as a Gmail client built primarily by former Skiff team members who joined through the acquisition. The shutdown announcement appeared in an X post today, stating the inbox will close "across web, desktop, and iOS on September 22."

Notion Cites AI Agent Adoption as Primary Shutdown Reason

Notion's announcement attributed the shutdown to changing user behavior around AI agents. The company stated in its X post: "As Notion agents have gotten more capable, we've seen more users hand off email workflows to them. Today, more than half of Notion Mail users manage emails without ever opening their inbox." The post added: "We launched Notion Mail with a belief that your inbox should think like you---more personal to how you work and over time, more capable with AI." Notion indicated it will now concentrate resources on "using agents to run your inbox" rather than maintaining a traditional email client interface.

User Email Data Remains in Gmail After Shutdown

Notion confirmed that user email history will stay in Gmail accounts after the Notion Mail shutdown. A support page published by the company states: "When the Notion Mail inbox shuts down, your email history will stay exactly where it is in Gmail." The support page notes that most user data will remain accessible through Gmail, as Notion Mail functioned as a client interface rather than a separate email hosting service.

FAQ

What date will Notion Mail shut down?

Notion announced that Notion Mail will shut down on September 22, closing access across web, desktop, and iOS platforms.

Why is Notion shutting down Notion Mail?

Notion stated that more than half of Notion Mail users now manage emails through AI agents without opening their inbox, leading the company to focus exclusively on agent-based email workflows instead of maintaining a traditional email client.