6 #spf MCP Servers & Clients
Every MCP server and client below is tagged #spf — install one to give Claude, Cursor, VS Code, or any other MCP-compatible client access to spf tools.
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DMARKOFF — DMARC, SPF & DKIM Analytics
dmarcoff
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.
Mailx Tools
Mailwarm
Email deliverability tools for AI agents. Check SPF, DKIM, DMARC, BIMI, blacklists, SMTP/IMAP connectivity, and generate DNS records.
Online Cyber Tools Mcp
Jambozx
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
Domain Deliverability Checker
mammalabsdev
Checks email domain deliverability via DNS: SPF, DKIM, DMARC, MX
Mailx Tools
Mailwarm
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.
IntoDNS MCP Server — DNS & Email Security Scanning
RoscoNL
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),
Frequently asked questions
What is a #spf MCP server?
- An MCP server tagged #spf implements the Model Context Protocol so AI assistants like Claude, Cursor, and VS Code can access spf-related tools, data, or APIs.
How many #spf MCP servers and clients are there?
- mcp.so currently lists 6 MCP servers and clients tagged #spf.
How do I install a #spf MCP server?
- Open any server below and copy its install snippet into Claude Desktop, Cursor, VS Code, or another MCP client's configuration — remote servers need no separate download.