Unpatched or Unsupported Microsoft Exchange Servers Can Expect an SMTP 450 Error

On Monday, March 24th, 2023, Microsoft announced that it is enabling a transport-based enforcement system in Exchange Online serving three functions: reporting, throttling, and blocking.

Unpatched or Unsupported Microsoft Exchange Servers Can Expect an SMTP 450 Error2023-04-04T09:32:32-04:00

Microsoft Outlook Privilege Elevation Vulnerability (CVE-2023-23397)

CISA added a zero-day vulnerability affecting Microsoft Outlook that is actively exploited in the wild. Microsoft has released a patch for the vulnerability as part of their March 2023 Patch Tuesday.

Microsoft Outlook Privilege Elevation Vulnerability (CVE-2023-23397)2023-04-12T12:39:15-04:00