"A tool for autonomously writing posts on X.com" matching MCP servers:

Enables ChatGPT and Codex to interact with Zoho Mail through Zoho's official MCP service, with safe workflows and capability boundaries.

A collection of small MCP servers for macOS automation that expose Apple Mail, MoneyMoney, and Spotlight functionality as tools via AppleScript and command-line, enabling AI applications to search mail, manage contacts and transactions, and perform system-wide file searches through natural language.

MCP server that encapsulates Apple Mail on macOS via AppleScript, enabling invoice PDF search, attachment saving, and message flagging through natural language.

Enables AI agents to send emails, create drafts in Gmail, and append content to Google Docs via standardized MCP tools.

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

Create disposable email inboxes, extract OTP codes in 15 languages, and receive webhooks — all from your AI agent. One call: create inbox → wait for email → get the verification code. Supports 7 domains, email forwarding, and HMAC-signed webhooks with OTP included in payload. Free tier available.

Enables AI assistants to interact with Microsoft 365 and Office services through the Microsoft Graph API, providing tools for email, calendar, files, Teams, SharePoint, and more with configurable permissions and output formats.

Enables monitoring shared Google storage quota and recovering Gmail space by scanning cleanup candidates, scoring them deterministically, and requiring review before moving non-protected messages to Trash.

MCP server giving Claude access to Tuta mail, calendar, contacts and drive. Supports mail modes (dedicated/shared/folder), trusted sender filtering with E2E verification, and Docker-based setup.

Enables Claude Desktop to interact with MailInApp projects, campaigns, and contacts. Allows designing and reading interactive email results with explicit confirmation for sending real campaigns.

Enables sending and drafting emails via Gmail and appending content to Google Docs through natural language commands.

Integrates with Google Docs and Gmail to append content to documents and create email drafts, featuring a manual approval system.

An MCP server that exposes a verify_email tool for checking email syntax, disposable domains, and MX records, returning a structured validity result.

MCP server for disposable email — create inboxes, receive emails, and extract OTP codes. Let your AI agent sign up for services, wait for verification emails, and extract codes autonomously.

A tool that connects to Substack's official Publisher API to access posts, newsletters, analytics, and subscribers, compatible with MCP clients like Claude and Cursor.

An MCP-powered AI agent that audits your Gmail for recurring subscriptions, detects silent price increases, and flags unused services.

Enables AI agents to autonomously receive, search, read, reply to, and forward email through a self-hosted Cloudflare service accessible via MCP or CLI, with no web interface.

Provides context-aware cold outreach guidance for AI clients via a single tool, cold_email_guidance, helping draft personalized and effective emails.

MCP server enabling AI assistants to autonomously manage HR tasks including employee onboarding, leave tracking, IT provisioning, meeting scheduling, and policy lookup via natural language.

A Model Context Protocol (MCP) server for Beehiiv that connects your newsletter to Claude Desktop, enabling management of subscribers, posts, segments, webhooks, automations, and more using natural language.