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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
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    maintenance
    Provider-agnostic email MCP server that connects any IMAP mailbox to AI assistants, enabling email management through natural language.
    8
    AGPL 3.0
  • A
    license
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    quality
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    maintenance
    Provides versioned, structured memory for AI agents, allowing them to store facts, detect conflicts, and track knowledge history via a hosted SaaS platform. It enables efficient hierarchical information retrieval and semantic search while keeping token usage constant as memory scales.
    7
    24
    8
    Apache 2.0
  • A
    license
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    quality
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    maintenance
    Provides email validation and domain configuration auditing tools for AI assistants, enabling single address checks, bulk list cleaning, SPF verification, and full mail setup grading (A-F) with actionable fixes.
    4
    74
    MIT
  • A
    license
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    quality
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    maintenance
    MCP server for searching and querying detailed housing listings in Taiwan, enabling AI to find properties with filters like city, district, room count, price, and age.
    2
    MIT
  • A
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    quality
    A
    maintenance
    Enables AI-powered analysis of Rapid7 vulnerability and asset data by exporting via the Bulk Export API and making it queryable through natural language or SQL in MCP-compatible tools.
    9
    29
    MIT
  • A
    license
    A
    quality
    B
    maintenance
    Enables AI assistants to verify email deliverability and find business emails via the Verifox API, supporting single and bulk operations.
    6
    82
    MIT
  • A
    license
    A
    quality
    B
    maintenance
    Enables real-time email verification via MCP tools, checking syntax, MX, disposable domains, and optional SMTP probe to determine deliverability with a VALID/RISKY/INVALID verdict.
    2
    31
    MIT
  • A
    license
    A
    quality
    B
    maintenance
    Enables AI assistants to search, read, draft, and send Gmail messages, as well as manage labels and trash using natural language.
    18
    MIT
  • A
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    quality
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    maintenance
    Enables AI assistants to interact with Fastmail services, providing tools for comprehensive email management, contact searching, and calendar event coordination via the JMAP API. It supports advanced features like threaded conversations, attachment handling, and bulk mailbox operations through natural language.
    28
    MIT
  • A
    license
    A
    quality
    B
    maintenance
    Exports vulnerability and asset data from Rapid7 Command Platform via the Bulk Export API into a local DuckDB database, enabling AI assistants to run natural language queries and SQL analysis with sandboxed security.
    9
    MIT
  • A
    license
    A
    quality
    A
    maintenance
    This MCP server bridges AI agents with Apple Mail on macOS, enabling email operations like reading, sending, drafting, searching, and scheduling through natural language, with added features like stable draft IDs and confirmation-gated sending.
    61
    2,494
    MIT
  • F
    license
    A
    quality
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    maintenance
    Enables AI to execute registered system commands across platforms using a stable program + args interface, without requiring shell-specific syntax or tool discovery.
    2
    1
    -
  • A
    license
    A
    quality
    A
    maintenance
    Enables sending and receiving email over generic IMAP and SMTP, with tools for searching, reading, drafting, attaching files, managing folders, and waiting for new messages.
    11
    MIT
  • A
    license
    A
    quality
    A
    maintenance
    Provides IMAP and SMTP capabilities, enabling developers to manage email services with seamless integration and automated workflows.
    18
    321
    BSD 3-Clause
  • A
    license
    A
    quality
    A
    maintenance
    Agent-native cold-email infrastructure providing ~12 high-level tools for domain setup, mailbox provisioning, campaign launch, inbox management, and metrics, all operated via MCP or CLI.
    28
    1
    MIT