Email MCP Server (IMAP + SMTP)

Enables AI agents to read, search, and send emails through the Model Context Protocol using standard IMAP (receiving) and SMTP (sending) protocols. Compatible with any email provider that supports these protocols: corporate mail servers, Tencent Enterprise Mail, Alibaba Enterprise Mail, Zoho, Microsoft Exchange/Office 365, Gmail (via app password), 163, QQ, and more. Agents can search messages, read attachments, send formatted emails, and reply to threads — all without provider-specific OAuth setup.

Security Assessment

Level	restricted
Permissions	read:email, write:email, send:email
Data Exposure	full
Requires Supervisor	Yes
Risk Notes	Full mailbox read access and ability to send email as the authenticated user. Ensure the agent has a clearly scoped objective before granting access. Use a dedicated automation account where possible.

Integration

Type	`mcp-server`
Package	`mcp-mail-server`
Install	`npx -y mcp-mail-server`
Auth	credentials

Capabilities

Actions	list_emails, search_emails, read_email, read_attachments, send_email, reply_email, delete_email, mark_read_unread
Input Types	text
Output Types	text, json
When to Use	When agents need to read incoming emails, search the inbox, send reports or notifications, or reply to messages as part of automated workflows.
When NOT to Use	For high-volume transactional email sending at scale (use a dedicated SMTP relay like SendGrid instead). For Gmail-only use cases where OAuth is preferred.

Category: communication · Free tier: Yes · Open source MIT. No cost beyond your email provider's own service fees. · Source

Collected: 2026-03-16 from https://github.com/yunfeizhu/mcp-mail-server