Microsoft is investigating an Exchange Online bug causing anti-spam systems to mistakenly quarantine some users' emails.

Microsoft says it partially mitigated a week-long Exchange Online outage causing delays or failures when sending or receiving ...

Threat actors are abusing Microsoft 365 infrastructure in a BEC campaign, and target its users in two brand impersonation campaigns.

Follow these steps to create a no-reply email address in Exchange Server/Microsoft 365: Log into the Microsoft 365 Admin Center with your administrator account. Click on the navigation menu and ...