USOM MAIL
Keep signup emails separate.
Create an email address without signing up. Receive confirmation emails, open your inbox, and read them. Messages are encrypted at rest.
By continuing, you agree to the Terms. See our Privacy Policy
The inbox interface is currently in Japanese. Here is how to get started.
Three steps to your first email
- Create an inbox above. Copy the displayed address using the copy button.
- Use that address for a signup where temporary email addresses are accepted.
- Return to the inbox. It checks automatically; select a message to read it. Use ＋ to add another address.
What is included?
- Up to 5 addresses and 30-day message retention on the free plan, with ads.
- No general-purpose sending, replies or forwarding.
- Read-only shared viewing for people you invite.
- Optional Google sign-in to access your inbox across devices. A guest inbox depends on this browser session.
The iOS annual plan is planned, not yet available. Do not use this service as the sole mailbox for important account recovery. Delivery is not guaranteed and some websites reject temporary addresses.
Connect an AI agent
Create an Agent token from Settings after signing in with Google. Configure a Streamable HTTP MCP client with this endpoint and your Bearer token:
https://server.kwonwe.com/mcpAgent addresses cost 0.05 pathUSD through MPP, with up to 5 addresses per Agent and 30-day retention. Query the current purchase quote before paying. Never paste a token into a public prompt.
English MCP setup and tool reference · Detailed Agent documentation (Japanese)
Who operates USOM Mail?
USOM Mail Development Team designs, develops and operates the service. It grew from a ten-minute mailbox concept into an inbox for people and AI agents.
Contact: boq4thqk82@kwonwe.com