Sohail Malik·3d agoMicrosoft Rejected Mail Without DMARC for 3 Days: What the 550 5.7.1 Bounce Teaches Small SendersPicture a small business owner on a Saturday morning in November. Coffee in hand. Black Friday three weeks away. They open their inbox and…
Suped·Oct 30NMI DMARC setup: SPF, DKIM, and receipt alignmentNMI email authentication needs the right DNS records, a matching sender, and proof from a delivered receipt or invoice.A response icon1A response icon1
John Liter·Oct 29Anyone Can Send Email as Your Business. Three DNS Records Decide Whether It Works.SPF, DKIM, and DMARC sound like alphabet soup, but they are the authentication challenge-and-password your domain has been missing. Here is…
Mark Kreitzman·Oct 29You Were Scammed by an Email Spoofing a Company’s Domain. Who Is Responsible?When a company fails to implement basic email security, innocent people can pay the price. So why is the victim often left holding the…
Suped·Oct 27Responder DMARC setup: SPF, DKIM, and sender alignmentResponder email authentication starts with account-specific DNS, a matching sender profile, and proof from a delivered campaign.A response icon1A response icon1
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 icon1A response icon1
Muhammad Ali Mughal·Oct 23How to Check SPF, DKIM and DMARC Records in 10 Minutes (and Fix the Common Mistakes)Here is a deliverability problem I see a lot: a business says its invoices “just stopped arriving,” and nothing changed on their side. When…
Suped·Oct 9DMARC enforcement: Why legitimate emails get blocked beyond p=noneDMARC alignment checks for legitimate senders, indirect mail, and policy changes.A response icon1A response icon1
Josepollman·Oct 5Microsoft’s DMARC Page Shows You a ruf Address, Then Says Microsoft Will Never Send to OneThe same page gives the example record and the warning. Here is how to read both.
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 icon1A response icon1
