The fight against spam and malware goes on unabated. ZAP, or zero-hour auto purge, is an Exchange Online Protection (EOP) feature that’s getting some extra features to deal better with spam and phish malware. New policy controls are available to control the feature.
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.
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.