Microsoft has enabled Authenticated Received Chain (ARC) for all for Office 365 hosted mailboxes to improve anti-spoofing detection and to check authentication results within Office 365. ARC is a ...
Microsoft is working on adding custom Authenticated Received Chain (ARC) configuration support to Microsoft Defender for Office 365. ARC is an authentication mechanism that provides an authenticated ...
Valimail, a provider of email authentication services, has joined the Microsoft Intelligent Security Association and will offer DMARC coverage free to Microsoft Office 365 customers. The objective is ...