Notion Shuts Down Skiff Email App as Users Shift to AI Agents

▼ Summary
– In February 2024, Notion bought Skiff, an encrypted email startup, and shut down Skiff’s email service within a year.
– In April 2025, Notion released Notion Mail, a Gmail client built by former Skiff employees.
– Notion announced it will shut down Notion Mail on September 22, 2025.
– Notion stated most users do not open their inbox, instead using AI agents to manage email.
– Notion confirmed that user email history will remain in Gmail after the shutdown.
In February 2024, Notion acquired Skiff, a startup focused on encrypted email and productivity tools. Just one year later, the company discontinued Skiff’s email service, eliminating @skiff.com addresses in the process. By April 2025, Notion had launched Notion Mail, a Gmail client largely built by the former Skiff team. Now, Notion has announced it is shutting down Notion Mail, effectively ending what remained of the Skiff email legacy.
The company revealed the news in an X post today, first reported by 9to5Mac, stating that the Notion Mail inbox across web, desktop, and iOS will be discontinued on September 22.
According to the post, most Notion users do not rely on traditional email clients. Instead, they are turning to AI agents to manage their electronic correspondence. The statement reads:
> 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. 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. So, we’re going all in on using agents to run your inbox.
Notion also clarified that users’ data will remain intact in Gmail. A support page explains: “When the Notion Mail inbox shuts down, your email history will stay exactly where it is in Gmail.”
(Source: Ars Technica)




