Editor's Note: This post originally appeared on the Microsoft Security blog and has been republished here. You already know that email is the number one attack vector for cybercriminals. But what you might not know is that without a standard email security protocol called Domain Message Authentication, Reporting, and Conformance ( DMARC ), your organization is open to the phishing attacks that...

Enterprise email architecture is evolving, which is good news for cybercriminals. Legacy secure email gateways (SEGs) simply don't provide full protection from today’s evolving and costly attacks, and cloud-based email requires a new security approach. In contrast, the next generation of email security—the AI-powered Secure Email Cloud —gives organizations more comprehensive security and better...

Are you sending Google Calendar invites and not getting replies, or maybe your invitees tell you they tried to reply and it was blocked? Or maybe you are trying reply to Google Calendar invites and being blocked saying the mail is not accepted due to your domain's DMARC policy? This is an issue I have been seeing, so I did some digging and I have figured out what is going on. Before I get to the...