Email on your own domains: add a domain, write its DNS, create mailboxes, read and send mail.
Maintain this server? Claim it
This server signs you in with OAuth, which the playground doesn't support yet. Install it in your MCP client to try it.
Pick your client. Values in capitals, like YOUR_TOKEN, are yours to fill in.
Run in a terminal
claude mcp add --transport http mail https://app.plainmail.dev/api/mcp/mcp
Headers
Authorization (optional, not in the config above): Optional. The server supports OAuth: connect with no key and sign in with Plainmail. Alternatively send a Plainmail API key, created at https://app.plainmail.dev/settingsWe haven't seen a tool list from this server yet.