telefonica.com email security: SPF, DKIM & DMARC
Is telefonica.com spoofable? See telefonica.com'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:spf.protection.outlook.com include:_spf.telefonica.com include:_spf.salesforce.com -allDKIM
OKSelectors: selector1, k1, mandrill, mailDMARC
Warningv=DMARC1;p=none;pct=100;fo=1;ri=3600;rua=mailto:6d5dcdae46cc46398c4356947ad88538@dmarc-reports.cloudflare.net;MX
OKtelefonicacorp.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 telefonica.com liveFrequently asked questions about telefonica.com
Is telefonica.com spoofable?
Yes. telefonica.com does not enforce a strong DMARC policy, so attackers may be able to send emails that appear to come from telefonica.com. Email security score: 73/100 (grade B).
Does telefonica.com have an SPF record?
Yes, telefonica.com publishes an SPF record (-all qualifier).
What is telefonica.com's DMARC record?
telefonica.com publishes a DMARC record (_dmarc.telefonica.com) with a p=none policy.
Does telefonica.com use DKIM?
Yes, DKIM signatures were detected for telefonica.com.
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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.