"Setting up multiple MCP servers within one MCP server" matching MCP servers:

Enables AI assistants to manage multiple Outlook/Microsoft 365 mailboxes simultaneously through MCP tools, with local OAuth token storage.

Enables AI assistants to read, search, triage, and manage one.com mailboxes over IMAP/SMTP, including sending, replying, forwarding, and organizing emails via natural language.

Give AI agents their own email inboxes. Create, send, receive, and manage email entirely via MCP tools.

Fetch fresh leads and verify emails in one MCP server

Enables managing multiple Gmail accounts under one OAuth client, with per-account access levels, cross-account search, and read/write operations via stdio or Streamable HTTP.

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.

A local MCP server that gives Claude read/write access to a personal Hotmail/Outlook.com mailbox via the Microsoft Graph API, exposing tools for listing, searching, sending, and drafting emails.

Enables AI agents to manage email mailboxes, send and receive emails, and handle webhooks via qmailing.

A read-only MCP server that connects to Proton Mail via Proton Bridge, enabling AI assistants to search, list, and read emails securely without leaving your machine.

Enables AI agents to verify email addresses, clean lists, run bulk verification jobs, and manage a Verifly account through natural language, without writing HTTP calls.

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.

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.

Enables MCP-compatible AI agents to create Gmail drafts, send Gmail email, and append text to Google Docs while keeping OAuth tokens inside the server.

Enables AI assistants to generate temporary email addresses, check inboxes, and read messages using the 1TempMail API.

Enables email address verification through a single MCP tool, returning whether an address is valid, invalid, or risky.

Connects multiple Gmail accounts to Claude Desktop via MCP, enabling email search, labeling, drafts, and confirmed sending through natural language.

MCP server for LobsterMail — gives AI agents email tools. Create inboxes, send and receive email, search messages, and manage webhooks.

An MCP server that provides full email management for Yahoo Mail via IMAP, including tools to list, read, search, delete, archive, flag, and move emails, with secure OAuth authentication and support for local and remote deployments.

Enables AI coding agents to create disposable test inboxes, wait for and read incoming email, and extract confirmation links and one-time codes for sign-up, password-reset, and magic-link flows.

MCP server for Google Workspace APIs - Docs, Sheets, Drive, Gmail, and Calendar. Enables reading, creating, and editing Google Docs and Sheets, managing comments, reading emails, and viewing calendar events.