Email agent Sol raises $4M from General Catalyst and opens its waitlist

cneuralnetwork · x · 2026-11-05

Sol, an AI email agent, has raised $4M from General Catalyst, Nexus Ventures and others, and is opening up its waitlist.

After connecting to Gmail, Sol identifies the work inside every email: which messages need a reply, a proposal, a meeting or a decision. It drafts docs, decks and sheets, fills forms via browser, proposes meeting invites, and writes replies in the user's voice—with everything requiring user approval before anything goes out.

On security, Sol says it never trains models on user email, encrypts data in transit and at rest, and is SOC 2 Type 1 compliant plus CASA Tier 2 verified for Google's Gmail app requirements.

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