Results for principal.com
Analysis performed on April 15, 2026 at 02:53 PM
90A
This domain is protected against spoofing
SPF
OKv=spf1 mx include:_spf.principal.com -allDKIM
OKSelectors: mail, s1, s2DMARC
OKv=DMARC1;p=reject;pct=100;fo=1;ri=86400;rua=mailto:dmarc_rua@emaildefense.proofpoint.com;ruf=mailto:dmarc_ruf@emaildefense.proofpoint.comMX
OKmxa-002f7901.gslb.pphosted.com, mxb-002f7901.gslb.pphosted.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.
Badge for your website
Display your email security score on your website.
<a href="https://spoofchecker.online/en/email-security/principal.com" target="_blank" rel="noopener"><img src="https://spoofchecker.online/api/badge/principal.com?score=90&grade=A" alt="Email security score for principal.com" height="28"></a>