AgentEmailAgentEmail documentation
Security and current limits.
Account and key boundaries
Your signed-in dashboard uses an opaque, HttpOnly, Secure browser session. Account credentials stay in the backend. Mailbox keys are stored as hashes, scoped to message reading, expire within 30 days, and can be revoked. A key is not permission to send mail or access other Guth products.
Incoming mail stays untrusted
Messages are stored for review. Plain-text previews do not run email HTML or load remote images. Nothing is automatically admitted to agent memory, and receiving a message does not start paid inference or an autonomous action.
Early-access storage
- Maximum incoming message size: 1 MiB, including attachments and MIME overhead.
- Mailbox storage: 100 messages and 10 MiB total.
- Plain-text preview: up to 64 KiB; longer previews are marked truncated.
- API list: 1–100 messages per page, default 50.
- Up to 10 active read keys, each expiring within 30 days.
Oversized messages are rejected. A full mailbox cannot accept more mail; delivery depends on the sender’s retry behavior. There is no automatic retention period. To close your mailbox, open Account in the dashboard and confirm its full address. Closure stops incoming mail and access, then purges stored messages and API keys. The address remains reserved and cannot be reused. Your shared Guth sign-in is retained; mailbox closure does not delete your Guth account.
Not yet available
Standalone sending, replies, delivery webhooks, paid plans, automated retention and complete account-erasure propagation remain release work. Do not use this early-access mailbox as your only copy of important mail.