Exo drops open-source AI email client with Claude

Treating AI as a first-class citizen in an email client rather than a bolted-on feature changes the fundamental inbox experience from reading to reviewing.

• –The built-in Cmd+J palette turns every email into a conversational workspace where Claude can read threads, draft replies, and search Gmail.
• –A persistent memory system learns writing styles from sent mail and user edits, ensuring drafts sound authentic rather than synthetic.
• –Support for custom agent providers and MCP servers means enterprise teams can plug in their own internal knowledge bases to assist with context gathering.
• –The choice to build a dedicated desktop app allows for deep system integration, making AI workflows feel native and seamless.