mail-mcp

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Most email MCP servers only read from IMAP. mail-mcp does everything: 30 tools for reading, searching, sending, replying, forwarding, and bulk operations across IMAP, SMTP, Microsoft Graph API, and Exchange Web Services. Multi-account, native OAuth2, built in Rust. Works with Gmail, Microsoft 365, Hotmail/Outlook.com, Zoho, and any standard IMAP/SMTP server.

github ↗

Install

How to run this server

[ { "cmd": "npx distribution", "imports": [] } ]

server path: mail-mcp

Tools

What this server exposes

smtp_send_message

Send an email via SMTP

smtp_reply_message

Reply to an email via SMTP

smtp_forward_message

Forward an email via SMTP

graph_send_message

Send an email via Microsoft Graph API

ews_send_message

Send an email via Exchange Web Services

Configuration

Environment & auth

authnone

envMAIL_IMAP_DEFAULT_HOST

envMAIL_SMTP_DEFAULT_HOST

envMAIL_SMTP_DEFAULT_PORT

envMAIL_OAUTH2_DEFAULT_CLIENT_ID

envMAIL_OAUTH2_DEFAULT_CLIENT_SECRET

envMAIL_OAUTH2_DEFAULT_REFRESH_TOKEN

envMAIL_IMAP_GMAIL_HOST

envMAIL_IMAP_WORK_HOST

envMAIL_OAUTH2_WORK_CLIENT_ID

envMAIL_OAUTH2_WORK_CLIENT_SECRET

envMAIL_OAUTH2_WORK_REFRESH_TOKEN

envREFRESH_TOKEN

Resources

githubhttps://github.com/tecnologicachile/mail-mcp ↗