Mailbridge
Wire Claude Code or Cursor to a real mailbox so the agent can triage inbox threads, draft replies, and send SMTP mail without leaving the editor.
Overview
Mailbridge is an MCP server for the Build phase that connects your AI assistant to email over IMAP/SMTP for read, search, send, and organise workflows.
What is this MCP server?
- stdio npm package mailbridge-mcp v2.5.1 for local agent hosts
- Read, search, send, and organise messages over standard IMAP/SMTP
- Works with any MCP-compatible assistant instead of a one-off email skill
- Fits support triage, outbound lifecycle mail, and build-time notification bots
- Published as npm identifier mailbridge-mcp at version 2.5.1
- Transport type stdio per MCP server schema
What problem does it solve?
Agents cannot see your real inbox unless you paste threads manually or ship a bespoke email API integration.
Who is it for?
Indie builders automating inbox triage, follow-ups, or transactional sends from Claude Code or Cursor with their own mail credentials.
Skip if: Teams that need Google Workspace OAuth-only admin controls, bulk marketing compliance, or a hosted inbox UI without self-managed IMAP/SMTP.
What do I get? / Deliverables
After you register mailbridge-mcp, your agent can query and act on live mail with the same tool-calling pattern as other MCP integrations.
- Registered stdio MCP server exposing email read, search, send, and organise tools
- Agent-callable mailbox workflows without a custom mail API layer
Recommended MCP Servers
Journey fit
Primary shelf is Build because registering Mailbridge is the integration step that connects IMAP/SMTP credentials to your agent runtime. Integrations is the canonical facet for MCP bridges that expose external protocols (email) as agent-callable tools.
How it compares
MCP email bridge over IMAP/SMTP, not a packaged CRM or lifecycle email SaaS.
Common Questions / FAQ
Who is Mailbridge for?
Solo builders and small teams who want their MCP agent to work with a standard mailbox via IMAP and SMTP.
When should I use Mailbridge?
Use it when you are wiring agent tooling during Build—or later for support and lifecycle mail—and need search, read, send, and organise without custom API code.
How do I add Mailbridge to my agent?
Install the npm package mailbridge-mcp, configure stdio transport in your MCP client, and provide your IMAP/SMTP host, user, and app password settings.