Notion killing Skiff-influenced email app since most users use AI agents instead

2026-06-25 · Source: AI - Ars Technica · Field: Technology & Digital — Artificial Intelligence & Machine Learning, Software Development & Engineering, Project & Product Management · Depth: Fundamental Awareness, quick

Summary

Notion is shutting down its Notion Mail email client, effective September 22, following its acquisition of encrypted email startup Skiff in February 2024. Notion Mail, launched in April 2025 and built by former Skiff personnel, is being discontinued because over half of its users now manage email workflows through Notion's AI agents without opening the inbox. While email history remains in Gmail, users must export drafts and scheduled emails by September 21. Notion also offers to migrate existing auto-label rules to Custom Agents. Organizations requiring HIPAA coverage for Notion Mail must transition by June 30, 2026. This move effectively ends the Skiff-influenced email product, which previously served 2 million users with a privacy focus that Notion Mail, as a Gmail client, lacked. Notion may still integrate other productivity ideas from the Skiff acquisition.

Key takeaway

For AI Product Managers evaluating feature roadmaps, Notion's decision highlights the rapid impact of AI agents on user workflows. Your users might already be automating tasks you plan to build into a dedicated client. Consider prioritizing agent-based solutions over traditional interfaces, especially for email management, to align with evolving user behavior and avoid investing in redundant features. Ensure clear data migration paths for users when sunsetting services.

Key insights

AI agents are increasingly replacing traditional email clients for managing correspondence within productivity platforms.

Principles

• User behavior shifts can rapidly deprecate product offerings.
• Acquired product lines may be discontinued if core value propositions diverge.

In practice

• Export drafts and scheduled emails before September 21.
• Migrate Notion Mail auto-label rules to Custom Agents.
• Transition off Notion Mail by June 30, 2026, for HIPAA compliance.

Topics

• Notion Mail
• AI Agents
• Email Clients
• Skiff Acquisition
• Product Sunsetting
• Data Migration
• HIPAA Compliance

Best for: Product Manager, Entrepreneur, AI Product Manager, Director of AI/ML, Tech Journalist

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Editorial summary, takeaway, and curation by AIssential. Original article published by AI - Ars Technica.