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June 2023 Exchange Server Security Updates

June 2023 Exchange Server Security Updates

Microsoft released several Security Updates (SUs) for Microsoft Exchange Server to address vulnerabilities. Due to the critical nature of these vulnerabilities, we recommend that customers apply the updates to affected systems immediately to protect the environment. Note: These vulnerabilities affect…

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Block sign-in from shared mailboxes

Block sign-in from shared mailboxes

When you create a new Shared Mailbox in Exchange Online, an account is automatically generated in Azure AD with a randomly assigned password. Although the initial password is unknown, it can be easily reset to a known value, enabling normal…

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