New Outlook Requirements for High-Volume Email Senders
If your business sends a lot of emails — for marketing, customer support, or internal communications — there’s a change coming from Microsoft that you need to know about. But don’t worry. We’re already on it. From 5 May 2025, Microsoft Outlook (covering addresses like @outlook.com, @hotmail.com, and @live.com) is tightening up email authentication rules …








