DMARC Shark — Email DNS Checker
Check a domain's public SPF, DMARC, MX and DKIM DNS records on demand. No account required.
Connect it
Settings → Connectors → Add custom connector
URL: https://dmarcshark.com/mcpSettings → Apps & Connectors → Advanced → Developer mode
Create connector with URL: https://dmarcshark.com/mcp{
"mcpServers": {
"email-dns-checker": {
"url": "https://dmarcshark.com/mcp"
}
}
}claude mcp add --transport http email-dns-checker https://dmarcshark.com/mcp{
"servers": {
"email-dns-checker": {
"type": "http",
"url": "https://dmarcshark.com/mcp"
}
}
}2 tools, pulled live
check_domainRuns fresh, bounded public SPF, DMARC, MX and optionally specified DKIM-selector DNS checks. Changes the public saved snapshot. Rate limited. DNS findings do not prove message authentication.
get_saved_resultread-onlyReads the last saved, timestamped public snapshot without making any DNS queries. Results expire after 90 days.
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