"How to organize my email effectively" matching MCP servers:

Checks email deliverability: audits a domain's SPF (including the 10-lookup limit), DKIM, DMARC and MX records with ranked fixes, checks a sending IP's reverse DNS and blocklist listings, and tests email headers against Gmail and Yahoo bulk sender requirements.

Enables users to create a Zoho mailbox on a domain they own at Namecheap by connecting their own Zoho account, previewing and approving the required DNS records, and getting browser-guided help entering them in Namecheap Advanced DNS without API credentials. It then verifies DNS propagation and delivers the finished mailbox with a one-use password link.

Exposes any stdio-based MCP server over the MCP Streamable HTTP transport so remote clients can reach it, spawning an isolated child process per session and gating access behind a secret URL path.

Gives AI agents a real email inbox on the user's own domain, letting them read and search mail, draft and send or schedule replies, file messages, create addresses, and fix DNS records. Access is scoped to only the mailboxes the user explicitly grants.

Enables LLM agents to read 3x-ui panel data and perform full CRUD operations on inbounds and clients.

One MCP server holding a live session with every client's account at once, so one agent can read across a dozen businesses and write inside only the one you name. It forwards each provider's own MCP tools (Cloudflare, Vercel, Resend, Supabase, Linear, Notion, Sentry, Netlify and more) with that client's credentials, and adds deterministic DNS and email checks that never call a model.

Enables looking up registration details for domains, URLs, or email addresses, returning registrar, creation and expiry dates, domain age, status codes, nameservers, DNSSEC, and registrant organization and country per domain. Queries registries directly via RDAP or WHOIS with no API key, running on Apify.

Enables auditing any domain's email deliverability and DNS health, including SPF, DKIM, DMARC, MX, mail provider, DNS blacklist status, catch-all, domain age, and a deliverability score.

A domain security and privacy checker MCP server that runs locally, performing DNS, TLS, HTTP, and RDAP lookups to generate a scored report covering certificates, email authentication, DNS, and web security headers.

Checks and fixes a domain's email authentication (SPF, DKIM, DMARC), DNS health, propagation, blacklists and domain/SSL expiry, returning copy-paste fix records from a validating engine, never a model guess. Local stdio server (npx -y @dnsdoctor/mcp) with the same 27 tools as the hosted https://dnsdoctor.dev/mcp.

Read-only access to a local Hiberden backup catalog: list projects, archives, tapes, and jobs, check 3-2-1 coverage, and verify a stored copy by reading it back and re-hashing it. Runs against the catalog on your own machine, so nothing leaves it.

Provides comprehensive email deliverability and domain registration analysis, evaluating SPF, DKIM, DMARC, DNS records, and expiry to identify issues and suggest fixes.

Diagnoses a domain's email authentication — SPF, DMARC, DKIM, MX, blacklists and domain or SSL expiry - and returns copy-paste fix records generated by a validating engine, never a language model. The MCP server is hosted remotely; this repository carries the plugin manifest, connector config and bundled skill.

An MCP server that gives an AI agent safe, high-level control over Namecheap domains – availability checks, registration, DNS, email forwarding, transfers, WhoisGuard privacy, and account balance via Namecheap's XML API. Designed for safe LLM interaction with built-in confirmation gates and read-modify-write DNS operations.

Enables Claude to run safe, read-only diagnostics against servers and websites — certificate chains and expiry, HTTP status/redirects/security headers, DNS records, email authentication (SPF, DKIM, DMARC, MTA-STS, TLS-RPT) and sitemaps. Every check returns severity-tagged findings with concrete fixes, plus a 0-100 score and A-F grade, without any ability to modify the target.

Provides DNS lookup and email authentication diagnostic tools (SPF, DKIM, DMARC, MX, etc.) for use with MCP-compatible clients. Enables natural language queries to check DNS records and email health.

Enables AI agents to perform real-time email verification, bulk address checks, and domain deliverability diagnostics such as MX, SPF, DKIM, and DMARC through MCP tools.

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.

Hand a human a rich interactive UI by URL from any MCP client and get structured data back — forms, approvals, surveys, pickers, editable lists. Round-trip human-in-the-loop for agents.

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.

Domain security reconnaissance for AI agents — 13 tools (DNS+DNSSEC, SSL/TLS, HTTP security headers, SPF/DKIM/DMARC email auth, port scan, ASN, RDAP/WHOIS) plus a one-shot security_scan returning a 0–100 Health Score (A–F). Free, no API key.

Enables AI agents to audit email and domain security (SPF, DKIM, DMARC, etc.) for any domain without requiring API keys.

Enables AI assistants to generate brandable business names and verify each candidate across TLDs with real registry lookups, ranking results by availability. Also checks individual or bulk domains for registration status, expiry, DNS, email and TLS details via RDAP, WHOIS and DNS probes.

MCP server for email deliverability: validate SPF/DKIM/DMARC/BIMI, check blacklists, test SMTP/IMAP, look up DNS, and generate ready-to-deploy records for any major email provider. Ships with two one-click prompts (audit-deliverability, setup-dns). Public, no auth.

Register free *.pntr.dev subdomains and manage them from your AI assistant — DNS records, wildcard DNS, disposable email inboxes, and HTTP request capture for webhook debugging. 15 tools over stdio; hosted endpoint also available.

Enables MCP clients to manage INWX domains through the DomRobot JSON-RPC API, including domain listing and inspection, availability and price checks, transfers, nameserver changes, contact handles, and INWX-hosted DNS zones.

Provides tools to classify, test, and expand IPv4/IPv6 addresses using Node's built-in net module.

Enables any MCP client to look up CVE intelligence — severity summaries, filtered searches, and full per-CVE detail fusing NVD, MITRE-CNA pre-NVD, CISA KEV, EPSS, and GitHub GHSA data — alongside a Shodan-derived internet-exposure footprint showing how many internet-facing services run a version mapping to a given CVE. It is free, keyless, and read-only, and distinguishes verified zeros from unassessed or failed lookups.

MCP server for managing cPanel hosting accounts via UAPI. Enables domains, DNS, email, MySQL, file management, and arbitrary UAPI calls through natural language.

Infrastructure diagnostics library with MCP server for Claude. Automate DNS, TLS, email security, and DNS propagation checks via AI agents. DNSSEC, DANE/TLSA support.