"Understanding and Using JSON" matching MCP servers:

Enables AI-driven customer support ticket processing, including classification, response generation, and automated email sending and Google Sheets logging.

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.

Enables AI assistants to search, read, draft, and send Gmail messages, as well as manage labels and trash using natural language.

Finds and verifies business email addresses using DNS/SMTP verification and web scraping, with no external API costs.

Enables AI agents to send emails and manage sending domains, templates, analytics, and content checks through the SendByte platform using the Model Context Protocol.

Sendmux is an email inbox API and email API for AI agents. Use this MCP server to let authorised agents work with Sendmux mailboxes, inbound email, clean JSON parsing, webhooks, outbound sending, provider routing, logs, billing, and team controls.

A minimal MCP server for sending plain-text emails and managing Gmail user labels over stdio, using only gmail.send and gmail.labels OAuth scopes.

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

An MCP-compliant server that exposes Gmail and Google Docs as tools, enabling AI agents to draft, send, and manage emails, as well as create, read, and append to documents through natural language.

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

MCP server for corporate Exchange that provides access to email, calendar, and people directory via OWA JSON API.

Find email addresses for people at companies and verify email validity using the Hunter.io API.

Email validation MCP server using MailboxValidator API to determine validity of an email address.

MCP server that enables reading, searching, and replying to all Apple Mail accounts from Claude while keeping credentials local, using a two-phase commit for safe sending.

Enables AI agents to send, read, search, and organize emails via ProtonMail using Proton Bridge. Supports MCP-compatible clients like Claude and Cursor.

An MCP server that exposes a mock email verification tool over stdio transport, providing structured JSON results with statuses valid, invalid, or risky.

Enables interaction with Microsoft Outlook services (Tasks, Calendar, Email, Contacts, and Teams) via the Microsoft Graph API, providing 39 tools for Claude Desktop with natural language and JSON output.

Enables reading and writing email through IMAP and SMTP accounts using natural language via the Model Context Protocol.

Enables management of ForwardEmail domains, aliases, emails, sieve filters, contacts, calendars, and more via natural language, using 71 MCP tools.

Lightweight MCP server that enables AI agents to manage Microsoft Outlook email, calendar, and files using PKCE authentication with only a Client ID.