Notion will shut down Notion Mail as users shift to AI agents
Notion says its email inbox will close Sept. 22, while Gmail data remains in place and agents continue handling email tasks.
By Maya Lindqvist · Senior Technology Correspondent
3 min read
Notion will shut down the Notion Mail inbox across web, desktop and iOS on Sept. 22, the company said in a post on X. The decision matters for users of the Gmail client because some Notion Mail-specific data, including drafts and scheduled messages, must be saved before the service closes.
Notion said it is ending the inbox because more users are handing email work to its AI agents rather than opening Notion Mail directly. In the X post, the company said more than half of Notion Mail users manage email without opening their inbox.
The shutdown also closes another chapter in Notion’s acquisition of Skiff, an encrypted email and productivity startup. Ars Technica reported that Notion bought Skiff in February 2024, later shut down Skiff’s email service and its @skiff.com addresses, then launched Notion Mail in April 2025.
What users need to save
Notion said most email history will remain in Gmail after the Notion Mail inbox closes. On a support page, the company said Gmail will continue to hold users’ email history when Notion Mail shuts down.
Notion told users to export drafts and scheduled emails by Sept. 21 because those items will not automatically move to another app. The company also said users can save Notion Mail setups and export snippets and auto-label instructions for use elsewhere.
For users who configured auto labels in Notion Mail, Notion said it will offer a way to move those rules into a Custom Agent. The company said existing Notion agents that manage email will keep running, and users’ email connections in Notion will remain in place.
Organizations using Notion Mail under HIPAA coverage face an earlier deadline. Notion’s support page says those customers should plan to move off Notion Mail by June 30, 2026.
Skiff’s remaining email link fades
Skiff had positioned itself around encrypted email before the Notion deal. Skiff said in 2023 that it served 2 million users, and Ars Technica reported that the service had drawn comparisons with rivals such as Proton Mail before its acquisition.
Notion Mail was different from Skiff’s original email product. Ars Technica reported that Notion Mail was a Gmail client and did not carry Skiff’s end-to-end encryption focus, though TechCrunch reported in 2025 that it used Skiff infrastructure.
Former Skiff staff were involved in Notion Mail after the acquisition, according to Ars Technica and a LinkedIn post cited in its reporting. Notion’s shutdown notice shows the company is now putting its email efforts behind agents rather than a separate inbox app.
Ars Technica reported that Notion may still use staff and product ideas from the Skiff acquisition in areas such as calendars and storage as it competes with broader workplace software suites. The company has not released direct successors to Skiff’s old product lineup, according to that report.
This story draws on original reporting from Ars Technica.