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20 Best Email MCP Servers: compared and ranked, September 2026Ranked from 2,148 matching servers on stars, growth, downloads and maintenance. Updated .

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  • A
    license
    A
    quality
    B
    maintenance
    An MCP server providing comprehensive email capabilities via IMAP and SMTP, enabling AI assistants to read, search, send, manage, schedule, and analyze emails across multiple accounts.
    49
    5,599
    LGPL 3.0
  • A
    license
    A
    quality
    B
    maintenance
    MCP server that enables email management (send, read, search, delete, etc.) via IMAP/SMTP, compatible with Gmail, Outlook, Yahoo, iCloud, and other standard mail servers.
    11
    MIT
  • A
    license
    C
    quality
    F
    maintenance
    An MCP server that enables AI assistants to send emails through SMTP protocol by providing server credentials, recipient information, subject, and message content.
    1
    48
    1
    Apache 2.0
  • A
    license
    Not graded
    quality
    A
    maintenance
    Enables safe, multi-account Gmail and Microsoft 365 operations with explicit aliases, including searching, reading, drafting, archiving, labels/categories, and human-reviewed sending via a localhost approval window.
    MIT
  • A
    license
    Not graded
    quality
    C
    maintenance
    MCP server for email + calendar via classic Outlook on Windows (COM automation). No Azure app registration, no OAuth — it just drives the Outlook desktop client you're already signed into.
    48
    MIT
  • A
    license
    Not graded
    quality
    A
    maintenance
    A unified MCP server for email access across Gmail, Outlook, iCloud, and generic IMAP providers, enabling search, send, organize, and batch operations.
    397
    19
    MIT
  • A
    license
    Not graded
    quality
    B
    maintenance
    MCP server for managing email via IMAP/SMTP, supporting multiple accounts and tools for reading, sending, searching, and organizing emails.
    35
    MIT
  • A
    license
    Not graded
    quality
    C
    maintenance
    Enables deterministic email triage by classifying messages into P0–P3 or REVIEW and emitting the pif.event.v1 contract. Provides tools for rendering Feishu messages, recording feedback, and retrieving policies, while leaving mailbox actions to Hermes.
    MIT
  • A
    license
    Not graded
    quality
    B
    maintenance
    A self-hosted MCP server for Gmail and Outlook that lets MCP clients read, search, send, reply, and manage email via OAuth, with no built-in secrets and support for both stdio and HTTP transports.
    48
    ISC
  • F
    license
    Not graded
    quality
    B
    maintenance
    Enables Claude to read, search, draft, send, flag, and move email across multiple IMAP/SMTP mailboxes while keeping credentials local.
  • F
    license
    Not graded
    quality
    D
    maintenance
    An MCP server that provides structured analytics for email data by extracting signals like topic, tone, and urgency using a local LLM. It allows users to query email distributions, sender patterns, and specific signals through a SQLite-backed interface.
  • F
    license
    Not graded
    quality
    C
    maintenance
    Local IMAP/SMTP MCP server that lets Claude read, search, draft, send, flag, and move mail across multiple IMAP mailboxes. Credentials stay on your machine.
  • A
    license
    A
    quality
    A
    maintenance
    Enables agents to convert Markdown into WhatsApp-compatible formatting, including styled text, lists, and tables that fit a phone's monospace width.
    4
    1
    678
    MIT
  • A
    license
    A
    quality
    A
    maintenance
    Provides IMAP and SMTP capabilities, enabling developers to manage email services with seamless integration and automated workflows.
    15
    320
    BSD 3-Clause
  • A
    license
    A
    quality
    D
    maintenance
    An MCP server that enables large language models to connect to remote servers via SSH, execute commands, and transfer files securely.
    6
    4
    Apache 2.0