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Email & Domain Tools

Analyze emails for spam signals, verify MX records, and check SPF / DKIM / DMARC authentication — instantly, no account needed.

Spam Analyzer

Paste email details below or upload a screenshot. The analyzer checks against 110+ patterns including live threat feeds updated daily.

MX & Email Authentication Analyzer

Enter a domain to check its MX records and verify SPF, DKIM, and DMARC DNS configuration.

Spam scoring checks subject lines, sender patterns, body keywords, link types, and authentication headers against 110+ patterns including live threat intelligence from URLhaus and OpenPhish, updated daily.
MX analysis performs live DNS lookups for MX, SPF, DKIM (_domainkey), and DMARC (_dmarc) records directly from your browser via this server.
AI Spam & Phishing Analyzer

Paste a suspicious email (headers, body, or both) and let Claude AI analyze it for phishing, spoofing, and social engineering indicators. Or forward potential spam directly to spam@deciusac.com for an assessment.

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