EOP Escalates Fight Against High-Confidence Phish

A change due in December will improve how Exchange Online Protection suppresses high confidence phish messages and stop them being delivered to user mailboxes. The old-fashioned allowed sender and allowed domain lists are being taken out of the equation and ignored when EOP is sure that it’s dealing with some high-confidence phish. It’s time to check your anti-spam policies.

Use ORCA to Check Office 365 Advanced Threat Protection Settings

ORCA is a project to help Office 365 tenant administrators validate their anti-spam and anti-malware settings against recommendations from Microsoft. ORCA is installed as a PowerShell module with just one cmdlet. After running Get-ORCAReport, you’ll have a report containing recommendations and observations about your configuration.

Safe Links and Safe URLs Delay Email Delivery For the Right Reasons

The Office 365 E5 plan includes Advanced Threat Protection (ATP), which builds on the anti-malware capabilities of Exchange Online Protection. ATP the includes Safe Attachments and Safe Links features, both of which can delay email delivery. I don’t notice the delay but others do. In any case, the more protection you have against malware, the better.

Reporting Spam to Make Exchange Online Protection Better

No one likes getting spam. Although EOP generally does a good job, Office 365 users can help themselves and help others by reporting spam that gets through to their mailboxes using Outlook’s Report Message add-in. And if they’d like someone else to report bad mesages, admins can do so through the Security and Compliance Center.