"How to test a React app" matching MCP servers:

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

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

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

Provider-agnostic email MCP server that connects any IMAP mailbox to AI assistants, enabling email management through natural language.

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

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.

Enables interaction with a local Mailpit instance for capturing and inspecting test emails during development and E2E testing.

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

Enables email management through IMAP/SMTP, including reading, sending, replying, starring, deleting, labeling emails, handling attachments, and filtering by Gmail smart categories. Works with MCP-compatible clients like Claude Desktop and Claude Code using App Password authentication.

Local macOS MCP server and setup app for Apple apps

Exposes a personal AI concierge's calendar and send_email tools over MCP, letting AI clients book Calendly meetings and send messages to the owner's inbox.

A production-style MCP server exposing six business tools (web search, database, CRM, email, calendar, analytics) to AI clients via a secure, authenticated interface, with mock mode and a reference agent client.

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.

Enables AI agents to search for, purchase, connect, and verify custom domains end to end, including setting up email records, configuring forwarding, diagnosing drift, and confirming TLS issuance without handling DNS records directly. It offers twelve hosted tools covering domain availability, registration orders, provider discovery, and account-wide connection inventory.

Enables a single owner to connect an MCP client to their own Gmail account over authenticated Streamable HTTP and read status, recent inbox messages, and full message content using their own Google OAuth app and grant.

Gives an agent (like Claude) complete control over a Gmail or Google Workspace account via IMAP/SMTP using an app password, without needing OAuth.

Enables assistants to read newsletter statistics, manage subscriber data, write drafts, and send test emails. Sending to a list requires a person to approve each send.

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

Connects a single self-hosted mailbox to ChatGPT via OAuth, enabling email search, reading, attachment handling, sending with duplicate-send protection, and folder management.

Enables querying a structured CV and sending test emails via Ethereal through a backend API.

Enables AI agents to send emails via Gmail using App Password authentication with Markdown content support.

Enables MCP clients to read and organize mail, manage drafts, and perform broader mailbox operations under configurable read-only, draft-only, or full-access modes.

A custom MCP server for sending and managing Gmail emails, supporting both App Password and OAuth2 authentication with features like template emails and label listing.

Enables AI clients to read, search, send and triage Microsoft 365 mail, manage folders, attachments and drafts, and work with calendar events and contacts by calling the same internal API the Outlook web app uses, with no Graph app registration or admin consent. Supports Azure CLI token refresh, a read-only mode, and compact normalized JSON output.

Connects Claude Desktop to a local email client, enabling AI-powered email reading, searching, drafting, and organization while preventing sending or permanent deletion.

Enables users to map every service that sends or receives mail as a domain, listing each vendor with the public DNS, certificate-log and website evidence behind it, how confident the match is, and what is missing or misconfigured. It also exposes a single vendor's patterns, proofs and documented setup for agents to query.

A mail service that connects private domain email to MCP clients, enabling sending (with auto signature), receiving, and reading emails through natural language via stdio or SSE transport.

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.

Enables AI clients to search IMAP mailboxes with live access and a full-text index covering email bodies and attachments (PDF, DOCX, XLSX, text).