Email Security Analysis of altex.ca
Complete verification of altex.ca'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 a:s10ip1.altex.ca a:s10ip4.altex.ca a:s30ip1.altex.ca a:s20ip1.altex.ca a:s40ip1.altex.ca ip4:206.162.157.96/27 include:spf.protection.outlook.com -allDKIM
OKSelectors: selector1DMARC
OKv=DMARC1; p=reject; pct=100; sp=reject; rua=mailto:cb0d1a3d@mxtoolbox.dmarc-report.com; ruf=mailto:cb0d1a3d@forensics.dmarc-report.com; fo=1MX
OKaltex-ca.w-v1.mx.microsoftRecommendations
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
The results above are updated daily. For an instant check of altex.ca, run a live analysis.
Analyze altex.ca 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.