Category Archives : Uncategorized

Windows 11 Restore Old Context Menus 

https://4sysops.com/archives/restore-classic-context-menu-in-windows-11-explorer-using-group-policy-or-powershell/

reg add "HKCU\Software\Classes\CLSID\{86ca1aa0-34aa-4e8b-a509-50c905bae2a2}\InprocServer32" /ve /t REG_SZ

Get-Process explorer | Stop-Process -ErrorAction Ignore

October 3, 2024 it_crumb_admin Uncategorized

O365 Shared Mailbox Permissions Reset for Outlook

https://www.mysysadmintips.com/windows/clients/846-office-365-cannot-send-as-shared-mailboxes-from-outlook

The issue was resolved (with Microsoft support help) by re-applying Full Access permissions and removing shared mailbox Outlook auto-mapping for the affected users and then adding the shared mailbox manually in Outlook. Re-applying permission via Office 365 admin center didn’t have any effect.

  • Run: Remove-MailboxPermission -Identity shared_mailbox@domain.com -User user@domain.com -AccessRights FullAccess
  • Run: Add-MailboxPermission -Identity shared_mailbox@domain.com  -User user@domain.com  -AccessRights FullAccess -AutoMapping:$false
  • -AutoMapping:$false disables shared mailbox auto-mapping to users’ Outlook profiles.
  • Wait 30-60 minutes for changes to propagate until shared mailbox disappear from users’ Outlook.
  • Manually add shared mailbox to users’ Outlook: File > Account Settings > Change > More Settings > Advanced > Open these additional mailboxes.
  • Try sending email as the shared mailbox by selecting From: address from Online Global Address List (to prevent caching issues).
July 14, 2024 it_crumb_admin Uncategorized
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