Agent Mailbox by Ridian for Claude.ai
com.getridian/agent-mailbox
Email inboxes for AI agents at ridianmail.com: read, draft, send, attachments. EU-hosted.
client:Claude.ai
transport:streamable-http
Install Agent Mailbox by Ridian in Claude.ai
Settings → Connectors → Add custom connector
https://api.getridian.com/mcp/mailboxClaude on the web takes a remote URL and completes OAuth in the browser. For a packaged server use Claude Desktop or Claude Code instead. Claude.ai docs