Exchange Online Protection Improves Zero-Hour Auto Purge (ZAP)

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.

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OWA Embraces Office 365 Sensitivity Labels

OWA now supports Office 365 Sensitivity Labels, which means that users can apply labels to mark and/or protect messages with encryption just like they can with Outlook. The update adds to the ways that sensitivity labels can be applied to Office 365 content, with the next step being to achieve the same support for the other online Office apps.

Office 365 Groups, Send As, and the Missing NDRs

You can configure Send As and Send on Behalf of permissions to allow Exchange Online users to send messages for an Office 365 Group. All is well if the messages arrive, but if they don’t, the NDRs might not get to where you think they should go, such as a folder in the Recoverable Items structure. That’s OK if the sender was told that a problem exists with a message, but they don’t know anything happened.

Outlook’s Hybrid Mode Helps in Flaky Network Conditions

Outlook logo

Outlook 2013 introduced the concept of hybrid mode (sometimes called Exchange Fast Access) to allow clients configured in cached Exchange mode to fetch data direct from the server when possible. The mode works well, except when you’re connected on a poor network as the attempts to fetch data from the server might cause Outlook to hang. A registry setting gives a way to force Outlook to operate in classic cached mode and use the OST exclusively when it needs data.

Setting Auto-Replies for Shared Mailboxes with PowerShell

A question about how best to set auto-replies for Exchange Online shared mailboxes to respond to messages arriving during a public holiday gives another chance for PowerShell to show how useful it is. You could do the work with Flow, but PowerShell is more flexible and capable when dealing with multiple shared mailboxes.