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"An overview of OSINT (Open Source Intelligence)" matching MCP servers:

  • email-intelligence-mcp

    naresh-mahiya
    F
    license
    Not graded
    quality
    B
    maintenance
    An MCP server that provides email verification, bulk list cleaning, and signup risk assessment tools. It exposes three typed tools for agents: verify_email, clean_email_list, and assess_signup_risk, with real DNS MX checks and disposable domain detection.

  • yahoo-mail-mcp

    th-an
    A
    license
    Not graded
    quality
    B
    maintenance
    MCP server for Yahoo Mail over IMAP+SMTP that enables AI assistants to manage emails fully—listing, reading, searching, threading, flagging, moving, archiving, handling attachments, and sending/reply/forward/draft—using an app-specific password.
    MIT

  • IMAP MCP Pro

    Temple-of-Epiphany
    F
    license
    Not graded
    quality
    A
    maintenance
    An enterprise-grade MCP server that provides production-ready IMAP email integration with advanced reliability features, comprehensive monitoring, and secure account management.
  • plunk-mcp by ignytehq

    plunk-mcpofficial

    ignytehq
    A
    license
    A
    quality
    C
    maintenance
    A Model Context Protocol server for Plunk, the open-source self-hosted email platform. Provides 84 tools for transactional email, contacts, campaigns, segments, templates, workflows, events, and analytics through the Plunk API.
    11
    24
    2
    MIT

  • LeadAce

    aitit-inc
    F
    license
    B
    quality
    B
    maintenance
    Outbound sales agent for Claude Code. MCP server handles prospect list building, dedup, quotas, and structured rejection feedback, while the plugin runs per-prospect research, email writing, Gmail sending, and reply tracking. Open source, self-hostable.
    55
    1

  • iCloud MCP

    jerichosequitin
    A
    license
    Not graded
    quality
    B
    maintenance
    An open-source project for a local iCloud Mail MCP integration. Currently provides only contribution and quality foundations, with Apple Mail access and MCP features deferred.
    52
    MIT

  • NornWeave

    DataCovey
    A
    license
    Not graded
    quality
    A
    maintenance
    Open-source, self-hosted Inbox-as-a-Service API for AI agents. It enables agents to manage email inboxes, send/receive emails, search messages, and wait for replies via REST or MCP.
    27
    Apache 2.0

  • Agent Email

    UseJunior
    A
    license
    Not graded
    quality
    A
    maintenance
    An open-source MCP server that provides AI agents with secure access to read, search, and manage emails via Microsoft 365 and Gmail. It features security-first defaults like recipient allowlists and markdown content conversion to facilitate safe agent interaction with mailboxes.
    4
    Apache 2.0

  • tvram-backend-mcp

    amoghar29
    F
    license
    Not graded
    quality
    C
    maintenance
    MCP server that exposes an email verification tool, returning verdicts of valid, invalid, or risky with reasons.

  • Weather India MCP

    vaishak10
    F
    license
    Not graded
    quality
    C
    maintenance
    Provides real-time weather forecasts and alerts for Indian metro cities using Open-Meteo, with support for named city queries and email sharing of weather summaries.

  • Notmuch

    hgn
    A
    license
    A
    quality
    A
    maintenance
    An MCP server that exposes a local notmuch email database to an LLM client such as Claude. It is read-first: searching, reading, and understanding mail is always available; writing anything (drafts, tags, exported files) requires an explicit opt-in flag and is confined to clearly bounded locations.
    13
    MIT

  • qorami-mcp

    loicfontaine-max
    A
    license
    A
    quality
    B
    maintenance
    ▎ Check an email before an AI agent sends it: send / ask a human / block — with machine reason codes and prompt-injection detection.
    2
    2
    MIT

  • @deliveriq/mcp

    Davison-Francis
    A
    license
    A
    quality
    C
    maintenance
    Email-deliverability tools for AI agents — 12 MCP tools across email verification, DNSBL across 50 zones, SPF/DKIM/DMARC analysis, spam-trap scoring, domain intelligence, and email finder. Free tier with no credit card.
    12
    63
    1
    MIT

  • Giggal AI MCP Server

    giggal-ai
    A
    license
    A
    quality
    A
    maintenance
    Giggal.ai is an email verification tool that runs a deep mailbox existence check on every address and verifies catch-all/accept-all and even SEG protected emails. Your bounce rate stays under 5%, and the 30% of every B2B list that other tools flag as "Risky" becomes deliverable again.
    3
    MIT

  • RadMail MCP

    dougsureel-tech
    A
    license
    A
    quality
    B
    maintenance
    An email operating system for AI agents that provides safe triage, drafting, and searching of emails with unbypassable hard-stops on money, banking changes, first-contact senders, and prompt injection.
    12
    273
    MIT

  • proofpoint-mcp

    wyre-technology
    A
    license
    A
    quality
    A
    maintenance
    MCP server for Proofpoint Email Protection - email security, threat intelligence, TAP (Targeted Attack Protection), and email filtering API integration
    40
    1
    Apache 2.0