#dmarc

Checks email domain deliverability via DNS: SPF, DKIM, DMARC, MX record validation, DNSBL blacklist lookup across 10 lists, RDAP/SOA domain age, and a weighted 0-100 composite score. Built for Clay, GTM, and outbound workflows.

Exposes 280+ free dev/security tools from onlinecybertools.com as MCP tools in one server: Base64/URL/JWT encoders, MD5/SHA/HMAC/bcrypt/argon2 hashes, JSON/YAML/XML formatters, regex tester, network diagnostics (ping/traceroute/dig/whois/SSL/SPF/DMARC), and OSINT lookups. No auth, no API key.

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 for tickets, audits and AI agent evidence. No API key required. Install: npx -y intodns-mcp

Email-deliverability tools for AI agents — 12 MCP tools across email verification, DNSBL across 50 zones, SPF/DKIM/DMARC analysis, spam-trap heuristic scoring, domain intelligence, and email finder. Free tier with no credit card. MIT licensed. Drops into Claude Desktop and Cursor via npx.

DMARKOFF MCP connects your DMARC monitoring data to AI assistants — Claude, ChatGPT, Cursor, Windsurf — via the Model Context Protocol. Instead of opening a dashboard and building filters, you ask questions and get real answers backed by actual data. Ask which domains dropped in compliance, why SPF is failing on a specific domain, which senders are causing DKIM failures, or whether yesterday's traffic looks anomalous compared to the 14-day baseline. The AI picks the right tool, queries your account data, and gives a concrete answer with numbers and actionable recommendations. 17 tools covering the full diagnostic flow: project overview, domain health, SPF/DKIM records, compliance stats, daily timeline, sending source analysis (by ISP, IP, hostname, or reporter), anomaly detection, geo breakdown, and live DNS checks for any domain — no account needed for DNS tools. Access is scoped to your DMARKOFF account via API key authentication with OAuth 2.1 support. All tools are read-only.

DMARKOFF MCP connects your DMARC monitoring data to AI assistants via the Model Context Protocol. Instead of opening a dashboard, you ask questions and get answers — domain health, compliance stats, SPF/DKIM diagnostics, anomaly detection, and sender analysis. Works with Claude, ChatGPT, Cursor, and any MCP-compatible client.

Free MCP server that gives Claude, Cursor, Windsurf, and other AI assistants live DNS and email security scanning. Exposes 5 tools: scan_domain (full DNS & email security scan with A+ to F grade), check_email_security (SPF, DKIM, DMARC + blacklists), lookup_dns (any record type), check_dns_propagation (global resolvers), and validate_dnssec. No API key required. Install with: npx -y intodns-mcp. Powered by IntoDNS.ai.

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.

Email deliverability tools for AI agents. Check SPF, DKIM, DMARC, BIMI, blacklists, SMTP/IMAP connectivity, and generate DNS records.

Email deliverability tools for AI agents. Check SPF, DKIM, DMARC, BIMI, blacklists, SMTP/IMAP connectivity, and generate DNS records.

Full email marketing platform for AI assistants — 32 MCP tools for campaigns, contacts, automations, A/B testing, AI subject line generation, multi-channel messaging (email + WhatsApp + push), deliverability monitoring, DMARC health checks, ecommerce revenue attribution, and advanced analytics.

Full email marketing platform for AI assistants — 32 MCP tools for campaigns, contacts, automations, A/B testing, AI content, multi-channel messaging (email + WhatsApp + push), deliverability monitoring, DMARC health checks, ecommerce revenue attribution, and advanced analytics.

DMARC MCP Server is a Model Context Protocol server that exposes DNS and email authentication data as structured, read only tools for developers and AI agents. It enables direct inspection and validation of DMARC, SPF, and DKIM records, including RFC compliant SPF analysis, lookup limit checks, and configuration diagnostics. The server integrates with MCP compatible tools like Cursor, VS Code, and Claude Code, making email authentication part of modern development and automation workflows.