How does the Dynamic Delivery feature of Exchange Online Protection Advanced Threat Protection (ATP) impact customers who use journaling for email compliance and archiving.
Find articles about configuring and administering Exchange Online for Office 365.
How to configure Exchange mailboxes so that the default reply option in Outlook on the web (OWA) is Reply instead of Reply All.
When preserving Exchange Online mailbox data for departed users, is it better to use a shared mailbox or an inactive mailbox in Office 365?
Email messages may be found in the Junk Email folder of Outlook with a message that fraud detection checks failed, warning that the message may be spoofed.
Office 365 has no mailbox backup options built in to the Exchange Online service, which is a serious concern for some organizations.