"InsForge Function Host server or service" matching MCP servers:

Enables authorized users to manage calendars, availability, tasks, contacts, sync operations, and Agent Mailbox email tools through an OAuth-scoped MCP connection.

Enables a conversational AI voice agent to handle airline customer-service tasks such as authenticating callers, retrieving booking details, listing alternative flights, rebooking, and sending confirmation emails.

A production-grade backend that lets LLMs safely operate Gmail, Google Drive, and Calendar through the Model Context Protocol.

Enables sending emails (including mass emailing), querying, updating, and canceling delayed emails via the Resend API.

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 fetching and analyzing emails from Tencent Exmail or any IMAP service, with tools to list yesterday's emails.

MCP server for reading and sending emails via IMAP and SMTP, designed for Zimbra and any standard mail host.

Open-source, self-hosted Inbox-as-a-Service API for AI agents. It enables agents to manage email inboxes, send/receive emails, search messages, and wait for replies via REST or MCP.

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.

Authenticated email service MCP for AI agents.

Enables verification of email address lists through a chosen third-party service (ZeroBounce, NeverBounce, MillionVerifier, BounceBan, or Reoon), returning one normalized row per address with verdict and role, free, and disposable flags. It protects credits by skipping malformed or duplicate addresses and stopping runs on invalid keys or exhausted balances.

Enables AI clients to search and read IMAP email, extract bounded attachments, and prepare and safely send SMTP messages with local previews and confirmation. It also generates client configurations and optional background-service files while keeping credentials on the host.

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 sending user contact emails and problem descriptions to a fixed service mailbox via SMTP, with Reply-To support for customer service replies.

A personal AI assistant that connects git history, Gmail, Google Calendar, and Google Drive into an intelligent daily briefing via function calling and MCP.

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.

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.

A brain for your mail: MailFathom turns IMAP mailboxes into a self-hosted, AI-native service.

Enables managing multiple Gmail accounts under one OAuth client, with per-account access levels, cross-account search, and read/write operations via stdio or Streamable HTTP.

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