"Deep Research on MCP (Master Control Program or Related Topic)" matching MCP servers:

A read-only Gmail MCP server that searches email, fetches complete threads, and stores them as local Markdown and JSON for offline analysis by other agents.

Enables MCP clients to exchange an MCP-audience token for a Microsoft Graph token and call Graph as the signed-in user, with tools for identity verification and recent mail access.

Enables read-only access to a single Gmail mailbox, listing emails within a date range and retrieving full headers and body text of individual emails, with deep-link jump URLs for each result.

Reads and searches local email archives (.mbox or .eml) with full MIME parsing, enabling queries about senders, subjects, dates, and bodies while keeping all data on your machine.

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.

Connects an MCP client to an existing classic Outlook session on Windows so agents can browse stores and folders, list recent messages, run literal text and metadata searches, and read plain-text bodies with attachment metadata. All access is strictly read-only, with no sending, deleting, moving, or network connections of its own.

MCP server for Claude to access on-premises Outlook/Exchange mailboxes via EWS with NTLM authentication, providing tools for email, calendar, and contact management without relying on Microsoft 365 or Graph API.

An unofficial MCP server for Smartlead that exposes the SmartProspect API and core Smartlead operations, enabling agents to search for leads, manage campaigns, and control credit spending with configurable safety modes.

MCP server that gives Claude and other MCP hosts full access to Mail.app on macOS — search, read, send, reply, flag, move, and more across all accounts configured in Mail.app.

Gives Claude (or any LLM) full control over Apple Mail — read, search, compose, reply, move, flag, and delete messages — via AppleScript on your local machine, with no cloud intermediary.

Lets AI agents send email over SMTP and read, search, and manage email over IMAP or POP3 using app passwords or authorization codes, with attachment handling and support for common providers.

Enables full read/write control over Apple Mail.app and Calendar.app on macOS, exposing all configured accounts without per-provider setup.

Gmail MCP server for searching, reading, and sending mail over MCP.

Enables natural language control over Google Workspace services including Gmail, Calendar, Drive, Docs, Sheets, Slides, Forms, Tasks, Chat, Contacts, Apps Script, and Custom Search via a remote MCP server hosted on Google Cloud Run.

Provides email discovery, verification, enrichment, and company research through a remote MCP server.

AI-native email marketing platform built for agents. Control campaigns, automations, contacts, templates, and analytics via MCP with OAuth authentication.

Provides a standardized interface for interacting with Unipile's tools and services through a unified API.

Enables email address validation and outbound email status checking for the Xeams on-premise email server via MCP tools.

Enables querying and retrieving email messages from an IMAP mailbox via MCP tools, with an indexed storage backend on Cloudflare.

gmail-mcp is a remote MCP server that exposes Gmail as a set of tools — search, read, label, draft, send — over streamable HTTP with OAuth 2.1. It runs on Cloudflare Workers under your own domain.