Sign in, add your Gmail and approve Claude in the window Claude opens - paste the app password when it asks
5
Ask Claude about your mail
3
Run in Claude Code
/plugin marketplace add lumman-lab/multi-mail
/plugin install multi-mail@multi-mail
Run the first, then the second.
4
Sign in, add your Gmail and approve Claude Code on the Lumman page your browser opens - paste the app password when it asks. If none opens, run /mcp and choose multi-mail.
5
Ask, or run /multi-mail:triage
Needs ChatGPT Pro, Business, Enterprise or Edu. Plus and Free cannot add it.
Press +, choose Add custom MCP server, name it Multi Mail, paste the address, choose OAuth, tick the box and press Create as a plugin.
5
Install it, then sign in, add your Gmail and approve on the Lumman page it opens - paste the app password when it asks. In a chat, type @ and choose Multi Mail.
3
Add to ~/.cursor/mcp.json
4
Sign in, add your Gmail and approve Cursor on the Lumman page Cursor opens - paste the app password when it asks
Streamable HTTP, OAuth 2.1 with dynamic client registration. No key or client id.
VS Code
Run MCP: Add Server, choose HTTP, paste the address and name it multi-mail.
Sign in, add your Gmail and approve Claude in the window Claude opens - paste the app password when it asks
5
Ask Claude about your mail
3
Run in Claude Code
/plugin marketplace add lumman-lab/multi-mail
/plugin install multi-mail@multi-mail
Run the first, then the second.
4
Sign in, add your Gmail and approve Claude Code on the Lumman page your browser opens - paste the app password when it asks. If none opens, run /mcp and choose multi-mail.
5
Ask, or run /multi-mail:triage
Needs ChatGPT Pro, Business, Enterprise or Edu. Plus and Free cannot add it.
Press +, choose Add custom MCP server, name it Multi Mail, paste the address, choose OAuth, tick the box and press Create as a plugin.
5
Install it, then sign in, add your Gmail and approve on the Lumman page it opens - paste the app password when it asks. In a chat, type @ and choose Multi Mail.
3
Add to ~/.cursor/mcp.json
4
Sign in, add your Gmail and approve Cursor on the Lumman page Cursor opens - paste the app password when it asks
Streamable HTTP, OAuth 2.1 with dynamic client registration. No key or client id.
VS Code
Run MCP: Add Server, choose HTTP, paste the address and name it multi-mail.
Sign in, add your Gmail and approve Claude in the window Claude opens - paste the app password when it asks
5
Ask Claude about your mail
3
Run in Claude Code
/plugin marketplace add lumman-lab/multi-mail
/plugin install multi-mail@multi-mail
Run the first, then the second.
4
Sign in, add your Gmail and approve Claude Code on the Lumman page your browser opens - paste the app password when it asks. If none opens, run /mcp and choose multi-mail.
5
Limits
Multi Mail reaches no filters, vacation responder or signature at Gmail, and deletes no draft.
Changing your Google password ends every app password. Make a new one and reconnect.
Connection
Receiving
imap.gmail.com, port 993
Sending
smtp.gmail.com, port 587
Login
Your whole address and the app password
Check
Both servers accept the password before the mailbox is added
Your data
Stored
The app password, encrypted under a key held outside the database
Mail
No copy kept - read from the mailbox on each call
Removing it
Disconnecting deletes our copy of the password, which works until you delete it at myaccount.google.com/apppasswords.
Tools
Offered
22 of the 30 - none of the 7 Settings tools, and no drafts_delete
Press +, choose Add custom MCP server, name it Multi Mail, paste the address, choose OAuth, tick the box and press Create as a plugin.
5
Install it, then sign in, add your Gmail and approve on the Lumman page it opens - paste the app password when it asks. In a chat, type @ and choose Multi Mail.
3
Add to ~/.cursor/mcp.json
4
Sign in, add your Gmail and approve Cursor on the Lumman page Cursor opens - paste the app password when it asks
Streamable HTTP, OAuth 2.1 with dynamic client registration. No key or client id.
VS Code
Run MCP: Add Server, choose HTTP, paste the address and name it multi-mail.
Sign in, add your Gmail and approve Claude in the window Claude opens - paste the app password when it asks
5
Ask Claude about your mail
3
Run in Claude Code
/plugin marketplace add lumman-lab/multi-mail
/plugin install multi-mail@multi-mail
Run the first, then the second.
4
Sign in, add your Gmail and approve Claude Code on the Lumman page your browser opens - paste the app password when it asks. If none opens, run /mcp and choose multi-mail.
5
Ask, or run /multi-mail:triage
Needs ChatGPT Pro, Business, Enterprise or Edu. Plus and Free cannot add it.
Press +, choose Add custom MCP server, name it Multi Mail, paste the address, choose OAuth, tick the box and press Create as a plugin.
5
Install it, then sign in, add your Gmail and approve on the Lumman page it opens - paste the app password when it asks. In a chat, type @ and choose Multi Mail.
3
Add to ~/.cursor/mcp.json
4
Sign in, add your Gmail and approve Cursor on the Lumman page Cursor opens - paste the app password when it asks
Streamable HTTP, OAuth 2.1 with dynamic client registration. No key or client id.
VS Code
Run MCP: Add Server, choose HTTP, paste the address and name it multi-mail.