"Improving the Intelligence of Large Language Models" matching MCP servers:

An MCP server that provides email verification, bulk list cleaning, and signup risk assessment tools. It exposes three typed tools for agents: verify_email, clean_email_list, and assess_signup_risk, with real DNS MX checks and disposable domain detection.

Enables AI assistants to manage Microsoft Outlook Desktop (Classic) calendar and email through local COM automation, without Microsoft Graph or Entra registration.

Enables MCP clients to exchange an MCP-audience token for a Microsoft Graph token and call Graph as the signed-in user, with tools for identity verification and recent mail access.

An enterprise-grade MCP server that provides production-ready IMAP email integration with advanced reliability features, comprehensive monitoring, and secure account management.

Enables safe auditing and cleanup of large Yahoo Mail backlogs by scanning headers, grouping by account and sender domain, and allowing review-then-execute actions (archive, delete, unsubscribe) without downloading message bodies.

Connects AI assistants to the Kit.com (formerly ConvertKit) email marketing platform, enabling management of subscribers, tags, sequences, broadcasts, and more through natural language.

Enables management of email campaigns, subscribers, lists, segments, journeys, templates, transactional email, and client/account settings through the Campaign Monitor API via natural language.

Enables automated B2B lead generation and personalized cold email outreach with self-improving campaign monitoring.

Provides a standardized interface for interacting with Mailchimp's tools and services through the Model Context Protocol, enabling easy management of Mailchimp campaigns, audiences, and reports via natural language commands.

Exposes Composio tools and actions (Gmail, Linear, etc.) as MCP-compatible tools for language models to interact with in a structured way.

Enables natural-language control of Apple Mail with 53 tools, including millisecond SQLite-powered search across large mailboxes, mailbox and message management, composing and batch operations.

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.

Enables read-only access to a single Gmail mailbox, listing emails within a date range and retrieving full headers and body text of individual emails, with deep-link jump URLs for each result.

Enables AI agents to read and send email, handle attachments and manage calendar invitations through their own IMAP/SMTP mailboxes, with per-mailbox sender and recipient allow lists and automatic HTML-to-Markdown conversion. It runs as a single self-hosted Docker container, exposing the same tools over MCP and REST.

MCP server for IntoDNS.ai providing 36 free tools for DNS, DMARC, SPF, DKIM, BIMI, DNSSEC, MTA-STS, FCrDNS, blacklist and email security checks. Citation-grade report snapshots with content hashes. No API key required.

MCP server for tidying a large Outlook / Hotmail mailbox via Microsoft Graph. Bulk moves, folder-tree surgery, inbox rules — no send tool, no permanent delete.

Enables MCP clients to read and search Proton Mail and create draft-only emails with attachments through the local Proton Mail Bridge, while requiring out-of-band human approval before a draft can be committed.

Provides a minimal Microsoft 365 MCP server with fourteen hand-written tools for email, people, and drafts, designed to fit small local models.

Enables AI assistants to verify email deliverability and find business emails via the Verifox API, supporting single and bulk operations.