Microsoft consumer mail rejects legitimate messages lacking DMARC
Bounces citing 550 5.7.1 or 550 5.7.23 began November 5 and also hit small senders.
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Stories tagged #dkim
Talos finds 1,400 scam emails via Staples and Dell orders
Attackers put phone-support lures in order fields so authenticated retailer mail urged victims to call attacker numbers.
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Attackers send authenticated phishing through Dell, Staples and other platforms
Cisco Talos saw about 1,400 Dell and Staples messages that planted callback numbers in order fields.
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Attackers hide scam helplines in Staples and Dell order emails
Cisco Talos saw about 1,400 messages whose DKIM and DMARC checks passed while pushing victims to call.
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EasyDMARC and GMO GlobalSign link DMARC management with BIMI certificates
Customers can add VMCs or CMCs so supported inboxes display verified logos alongside DMARC controls.
Free iCloud Account Could Let Attackers Spoof Any @icloud.com Address and Pass Email Security Checks
Two patched Apple iCloud SMTP parsing flaws let free accounts spoof any @icloud.com address while passing SPF, DKIM, and DMARC checks.
Phishing Attacks Abuse Trusted Email Infrastructure and URL Cloaking to Evade Security Filters
VBSpam Q3 2026 test shows phishers abusing DKIM-aligned domains, Amazon SES, and multi-stage URL cloaking to defeat email filters.
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New Phishing Attacks Use Trusted Email Infrastructure and URL Cloaking to Bypass Security Tools
Virus Bulletin Q3 2026 report details phishing using DKIM-aligned senders, Amazon SES delivery, and real-time URL cloaking to evade email security and scanners.
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