Email Security Analysis of soprasteria.com
Complete verification of soprasteria.com'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 mx ip4:98.85.207.89 ip4:44.194.142.81 ip4:44.235.179.233 ip4:44.245.65.175 ip4:18.168.51.200 ip4:18.168.140.58 ip4:212.180.1.59/24 ip4:194.206.23.33/32 ip4:170.207.37.144/32 ip4:170.207.37.145/32 ip4:170.207.39.152/32 ip4:170.207.39.153/32 ip4:143.47.149.171 include:_spf.atoracle.com include:spf.protection.outlook.com include:_spf.prod.hydra.sophos.com -allDKIM
OKSelectors: selector1, s1, s2MX
OKsoprasteria-com.mail.protection.outlook.comRecommendations
1Change your DMARC policy from p=none to p=reject to block spoofing
With p=none, your DMARC record only monitors — it doesn't actually block spoofed emails. Attackers can still send emails as your domain and they'll be delivered normally. Switching to p=reject instructs receiving servers to drop fraudulent messages before they reach the inbox.
2Add 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.
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Analyze soprasteria.com 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.