joho no todai·2d agoOutlook.com Rejects Email With 550 5.7.1 as Senders Report Failures Across Multiple ServicesSenders are reporting authentication-related rejections for messages to Outlook.com and Hotmail, including mail sent through Microsoft 365…
Suped·Oct 24CampusGroups DMARC setup: SPF, DKIM, and sender alignmentCampusGroups email authentication starts with an approved sender, campus-specific DNS, and a message that proves alignment.A response icon1
Suped·Oct 9DMARC enforcement: Why legitimate emails get blocked beyond p=noneDMARC alignment checks for legitimate senders, indirect mail, and policy changes.A response icon1
Suped·Oct 3Antino phishing: Why SPF pass did not protect the visible senderRead the authenticated domain, investigate the attachment lure, and enforce DMARC with evidence from legitimate mail.A response icon1
Josepollman·Sep 20The Fraud Email That Was Not ForgedRevolut says someone used a real government agency’s email domain to ask for customer data. I build a tool that reads email authentication…
