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

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

CyberSecurity, Microsoft

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 Errormarc2023-04-04T09:32:32-04:00

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

CyberSecurity, Microsoft

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)marc2023-04-12T12:39:15-04:00

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

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

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