"Security" matching MCP servers:

Enables AI agents to review email threats detected by Abnormal Security, inspect the underlying messages, evaluate or trigger remediation, and examine employee-reported campaigns and account-takeover cases through the Abnormal REST API.

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.

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.

Security-first SendGrid MCP server: two-phase sends, dry-run by default, recipient allowlists, rate limits, audit log, no BCC. One auditable file.

MCP server for SpamTitan email security — manage quarantine, allowlists, blocklists, and view email stats

This server enables AI agents to create instant, zero-log disposable inboxes for signups and automated workflows. It also provides robust tools for autonomous extraction of verification codes and deep email security auditing.

MCP server for Checkpoint Harmony Email & Collaboration (Avanan). Enables AI assistants to manage email security, anti-phishing, anti-malware, and threat detection via the Avanan API.

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.

An MCP server for Abnormal Security, enabling management of threat detection, email security cases, and AI-powered attack protection through Abnormal's API.

Enables AI agents to interact with email accounts via the Himalaya CLI, supporting features like message reading, folder management, and controlled email sending. It prioritizes security with graduated permission modes and the exclusion of destructive operations like permanent deletion.

Enables users to find and verify corporate emails, enrich company websites, score deliverability risk, audit domain email/SSL/RDAP security, and stress-test or optimize quantitative trading strategies. It exposes these capabilities as eight production MCP tools consumable from Claude Desktop, Cursor, Windsurf, Cline, Clay, and n8n.

A legacy MCP server for Avanan cloud email security, providing tools to manage threat detection, email policies, and security incidents through Avanan's API.

MCP server for Proofpoint Email Protection - email security, threat intelligence, TAP (Targeted Attack Protection), and email filtering API integration

Connects DMARC monitoring data to AI assistants to facilitate the analysis of email security reports, domain details, and statistics. It allows users to manage security alerts, export report data, and monitor email authentication health through natural language commands.

Connects LLMs and AI agents to enterprise Microsoft 365 environments, enabling administration across Exchange Online, Microsoft Graph, Entra ID, compliance, security, mailbox operations, and mail-flow diagnostics through 34 tools.

Enables AI agents to manage FortiMail email security through the FortiMail Engine API, providing tools for domains, users, queues, reports, logs, and SMTP configuration.

Enables MCP clients to securely access and operate a Microsoft 365 tenant through the full Microsoft Graph API, covering mail, calendar, files, Teams, SharePoint, Planner, OneNote, Excel, admin, security, and more with 219 tools and guarded write capability.

Enables AI agents to send and receive email with enforced security policies, scoped mailboxes, and human approval for external sending.

Enables MSPs and security teams to manage customer tenants, licenses and usage billing, and to run security operations such as searching events and secured emails, maintaining allow/block exception rules, and quarantining or restoring messages. It is exposed as a stateless, multi-tenant Streamable HTTP endpoint that takes credentials per request via headers.

Enables MCP clients to query Abnormal Security for threats, message search, remediation history, ATO cases, vendor/BEC data, and opt-in evidence download and response actions.

Enables AI assistants to manage cPanel hosting accounts including DNS, email, databases, SSL, files, security, and more through natural language using cPanel's UAPI and API2.

Enables AI agents to investigate email delivery through Mimecast's email security gateway by tracking messages, listing and releasing held mail, reading Targeted Threat Protection logs and threat remediation incidents, reviewing audit events, and checking inbound/outbound mail queues. It is stateless and multi-tenant, taking Mimecast API 2.0 credentials as per-request headers so several client accounts can be served without storing secrets.

Enables AI agents to browse email-security incidents and their details, look up what the platform knows about a sender, read mitigation statistics and allow-list entries, and, on explicit request, classify incidents and add or remove allow-list entries through the Management API.

Enables natural language control over Google Workspace (Gmail, Drive, Calendar, Sheets, Slides, Tasks) through secure OAuth 2.1 authentication, with vault-level security and multi-user isolation.

A local MCP server that unifies email and calendar management across multiple providers, enabling AI agents to search, read, and write with explicit approval and local-first security.

Provides anonymous email management through Firefox Relay, enabling sending, receiving, and OTP extraction while maintaining privacy and security.

A privacy-focused MCP server that grants Claude read-only access to Gmail using strict, user-defined filters to control which emails are exposed. It enables searching and fetching email metadata while ensuring data security through OAuth and localized filter enforcement.

An open-source MCP server that provides AI agents with secure access to read, search, and manage emails via Microsoft 365 and Gmail. It features security-first defaults like recipient allowlists and markdown content conversion to facilitate safe agent interaction with mailboxes.

Enables AI agents to search an email security gateway's quarantine, inspect held messages, read sender allow and block lists and mail flow statistics. On explicit request it can also release or delete quarantined messages and add or remove list entries.

Sovereign autonomous mailbox and identity layer for AI agents, providing persistent email identities, object-level security, OTP/2FA capture, link safety analysis, and event-driven email handling via MCP.