"How to connect to Firebase" matching MCP servers:

Enables pushing enriched leads into Instantly or Smartlead campaigns with ICP score gating, deduplication, and dry-run previews via an Apify actor.

Sends document files (EPUB, PDF, DOCX, etc.) to your Kindle via email using Amazon's Send to Kindle feature.

An MCP server that sends plain-text Gmail messages only to a predefined allowlist, using generated recipient IDs instead of email addresses to enforce security.

One-pass agentic inbox triage as an MCP server: fetch unread Gmail → classify (action_needed/fyi/newsletter/noise) → summarize → extract tasks → draft replies as Gmail DRAFTS (never sends) → flag calendar → write a triage report. Four stdio tools (fetch_emails, save_gmail_draft, append_tasks, write_report); the host is the LLM, so it runs keyless in Claude Code. Gmail scopes: readonly + compose

A Model Context Protocol (MCP) server that allows Claude Desktop to send documents directly to your Kindle e-reader.

Enables sending documents (Markdown, PDF, EPUB) directly to a Kindle via Amazon Send-to-Kindle email, with Markdown converted to EPUB using pandoc.

Enables AI agents to send emails and manage tasks in Microsoft To Do with scoped, low-risk access to Microsoft Graph.

A secure email gateway MCP server that protects AI agents from prompt injection attacks by scanning emails for malicious instructions before they reach the agent.

Enables AI assistants to connect to Gmail accounts, check connection status, and send emails through a secure OAuth 2.0 interface.

Enables users to connect a self-hosted MCP server to their own personal iCloud mail and calendars, supporting folder discovery, search, message and attachment reading, sending and replying, verified moves and flag changes, plus calendar recurrence-aware reads and conflict-checked event writes. Read-only is the default profile, with full access and permanent expunge enabled only through explicit operator configuration, granular restrictions, and client approval.

Enables MCP-compatible clients to connect to Outlook mailboxes via the Microsoft Graph API using app-only authentication.

Official MCP server for Shipmail, enabling agents to manage domains, mailboxes, messages, threads, webhooks, and suppressions via natural language.

Enables AI assistants to connect over streamable HTTP with bearer authentication to tools for agent lifecycle, email, phone, platform, vault, and browser extension management.

Enables AI assistants to connect to any email provider via IMAP/SMTP, supporting account management and email operations like listing, sending, and marking emails.

Connect AI assistants to your email inbox using the Model Context Protocol (MCP), supporting IMAP, POP3, and SMTP on Windows.

Enables MCP clients to securely connect to a personal HEY account through OAuth and perform scoped email, search, contact, calendar, todo, thread, and sending operations.

Provides 95 tools to connect AI assistants to LinkedIn, Email, Calendar, WhatsApp, Instagram, and Telegram through the Unipile API, enabling cross-platform messaging, search, and account management.

MCP server for building safe AI agent email marketing workflows with Mailrith.

Provides read-only access to Proton Mail through the local Proton Bridge, enabling search, retrieval, and listing of messages, threads, folders, and attachments without any mutating capabilities.

Enables Claude and other MCP clients to search, read, write and organise mail on Stalwart servers over JMAP — including folders, Sieve filters, out-of-office replies and one-click unsubscribe — with draft-first and confirmation safeguards against prompt injection. A separate admin endpoint additionally exposes account, domain, mailing-list, queue, IP, log and task management through Stalwart's JMAP management API.