Observed arrival · 2026-10-20
simail puts a human hand on the agent inbox
A private-beta email service gives AI agents inboxes and exposes email actions through REST, MCP, webhooks, WebSocket, an SDK, and a CLI.
○Open
⊠Login
$Paid
†Ads
✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- AI agent builders handling email
- Worth noticing
- Held messages return metadata only across REST, MCP, webhooks, events, and WebSocket until a person releases them.
Field notes
The sample console traces an inbound message from SMTP acceptance through classification, injection scanning, and a held state, then shows a human release. While held, the agent receives metadata only; the page says a release requires a reason and a fresh passkey or email code. For outbound mail, the examples show both a repeated-key retry and a separate same-recipient, same-body duplicate check.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
⊠LoginAccess appeared gated
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
One card from the complete issue