"MCP servers built with languages other than Python and TypeScript" matching MCP servers:

Enables AI agents to inspect any public domain’s web technology stack, email deliverability and DNS health (MX, SPF, DKIM, DMARC, MTA-STS, TLS-RPT, BIMI), and HTTPS security posture with typed JSON scores and remediation-ready findings, plus history, bulk checks, monitoring alerts, and reverse technology lookups.

Enables OAuth2-authenticated clients to search and read on-premises Exchange mail, download attachments, manage drafts and confirmed sending, update read flags, move messages, look up directory entries, and access personal calendar events through EWS, with LiteLLM integration.

An authenticating proxy that bridges Google's remote Gmail MCP server with OAuth token refresh, letting MCP clients use static credentials to access Gmail.

MCP server for Claude Code CLI that integrates with Google Workspace, enabling management of Docs, Sheets, Drive, Gmail, Calendar, and Apps Script.

Provides MCP tools for searching, reading, and drafting Gmail emails, as well as querying SAP OData endpoints with safe read operations and mock mode.

A Python-based MCP server for Microsoft Outlook integration using Microsoft Graph API, enabling email reading/sending, calendar management, and contact operations through Claude Desktop.

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.

Enables AI assistants to send push notifications to WeChat, email, and other channels via PushPlus, supporting multiple message formats and channels.

Free email for AI agents with hardware attestation, real SMTP/IMAP/JMAP, and real-time notifications.

Send email, find out why an email failed, set up sending domains, and manage templates, contacts, lists and campaigns in your AhaSend account.

Enables reading, converting, and managing email messages, calendars, and contacts, along with mail account folder/thread operations and personal name parsing/formatting, via typed MCP tools.

A comprehensive MCP server integrating Google Docs, Sheets, Drive, Gmail, Calendar, and Apps Script APIs, featuring unique Apps Script support for AI-driven automation.

Enables AI assistants to research and organize professional contacts, enrich profiles, sync inbox conversations, pull web context, and draft personalized outreach messages that require human approval before sending. All actions run under server-side daily and hourly safety thresholds to keep the connected LinkedIn account within safe limits.

An MCP server that exposes Google Docs and Gmail capabilities to LLMs via SSE transport.

MCP server that converts .eml email exports (Gmail, Outlook, and other archives) into clean Markdown with YAML front matter — splitting reply threads, stripping signatures and quoted history, extracting attachments, and parsing calendar invites. Built for feeding archived email into RAG and LLM pipelines.

AI-native email marketing platform built for agents. Control campaigns, automations, contacts, templates, and analytics via MCP with OAuth authentication.

A minimal Python MCP server that gives Claude access to built-in Apple apps (Mail, Contacts, Calendar, Notes, Reminders) on macOS, leveraging native APIs and local databases for speed with no OAuth setup.

Exposes a read-only tag index over a synced personal email archive, letting MCP-compatible agents run fast local searches, browse generated tags, check indexing health, and fetch full thread content for the most promising matches. Built for recall by meaning rather than exact wording, since tags capture topics, people, organisations, document types, and likely misspellings.

Remote MCP server on Cloudflare Workers that exposes multiple Gmail accounts to Claude, replicating Anthropic's built-in Gmail connector with an added account parameter.

A Python-based MCP server that bridges MCP-compatible clients with the Gmail API, enabling AI-driven email management through natural language commands.

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

MCP server that exposes Gmail and SAP tools, enabling natural-language email management and SAP data browsing through a Mistral-powered AI assistant.

A Python-based MCP server that integrates Google Docs and Gmail, allowing appending text to documents and creating email drafts with terminal approval prompts.

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

A stdio MCP server exposing a validate_emails tool that lets agents screen email lists without sending mail or probing SMTP, checking syntax, DNS/MX records, disposable domains, role accounts, free providers, typo suggestions, and SPF/DMARC. Each address comes back with a valid/risky/invalid/unknown verdict plus machine-readable reason codes so agents can clean leads and signups before outreach or import.

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

Fetch fresh leads and verify emails in one MCP server

MCP server that enables AI agents to check if email addresses or domains are disposable using the isitdisposable.com API. It provides tools like check_email, check_domain, and check_batch for real-time validation.

Detects whether a company runs cold email outbound and identifies the email sending infrastructure, including sending domains, platforms, and authentication status.

Provides email validation and domain configuration auditing tools for AI assistants, enabling single address checks, bulk list cleaning, SPF verification, and full mail setup grading (A-F) with actionable fixes.