Email Security Analysis of npsct.org
Complete verification of npsct.org's SPF, DKIM, DMARC, and MTA-STS records. Find out if this domain is protected against email spoofing.
Last updated: April 15, 2026
SPF
OKv=spf1 include:_spf.npsct.org include:_spf1.npsct.org include:_spf2.npsct.org include:_spf3.npsct.org include:_spf4.npsct.org ~allDKIM
OKSelectors: selector2DMARC
OKv=DMARC1; p=reject; pct=100; rua=mailto:45001183a75d4f86acf6a0daaf3dfff0@dmarc-reports.cloudflare.net,mailto:re+jdyrfwfab0s@dmarc.postmarkapp.com,mailto:dmarc_agg@vali.email; ruf=mailto:ittechs@npsct.org; fo=1; rf=afrf; ri=84600; sp=reject; aspf=r;MX
OKaspmx.l.google.com, alt2.aspmx.l.google.com, alt1.aspmx.l.google.com, alt3.aspmx.l.google.com, alt4.aspmx.l.google.comRecommendations
1Add MTA-STS to enforce TLS encryption for incoming emails
Without MTA-STS, an attacker performing a man-in-the-middle attack can downgrade the connection between mail servers to plaintext, intercepting emails in transit. MTA-STS tells sending servers to only deliver via TLS with a valid certificate, preventing downgrade attacks.
Run a live analysis
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Analyze npsct.org liveGuides to understand these results
SPF Guide
Understand how SPF defines which servers are authorized to send emails for a domain.
DKIM Guide
Discover how DKIM cryptographically signs your emails to guarantee their authenticity.
DMARC Guide
Learn how DMARC orchestrates SPF and DKIM to protect your domain.
MTA-STS Guide
Learn how MTA-STS enforces TLS encryption to protect your emails in transit.
SPF vs DKIM vs DMARC
Compare the three protocols and understand how they work together.