zoom.us email security: SPF, DKIM & DMARC
Is zoom.us spoofable? See zoom.us's SPF, DKIM, DMARC and MTA-STS records and find out if this domain is protected against email spoofing.
Last updated: June 3, 2026
SPF
OKv=spf1 include:%{ir}.%{v}.%{d}.spf.has.pphosted.com include:_spf.google.com include:amazonses.com ip4:52.38.191.241 include:servers.mcsv.net include:_spf.salesforce.com include:spf.mandrillapp.com ip4:13.110.78.0/24 ~allDKIM
OKSelectors: google, k1, mandrill, s1, s2DMARC
OKv=DMARC1;p=reject;ri=3600;rua=mailto:sesbounce@zoom.us,mailto:dmarc_rua@emaildefense.proofpoint.com;MX
OKmxa-00569201.gslb.pphosted.com, mxb-00569201.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.
Run a live analysis
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Analyze zoom.us liveFrequently asked questions about zoom.us
Is zoom.us spoofable?
No. zoom.us is protected against email spoofing with a robust configuration. Email security score: 90/100 (grade A).
Does zoom.us have an SPF record?
Yes, zoom.us publishes an SPF record (~all qualifier).
What is zoom.us's DMARC record?
zoom.us publishes a DMARC record (_dmarc.zoom.us) with a p=reject policy.
Does zoom.us use DKIM?
Yes, DKIM signatures were detected for zoom.us.
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Guides 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.