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New-TenantAllowBlockListItems

Use the New-TenantAllowBlockListItems cmdlet to add entries to the Tenant Allow/Block List in the Microsoft Defender portal. Exchange PowerShell reference

From the Exchange PowerShell reference 12 parameters Its page in the reference

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Parameters

12 in the Exchange PowerShell reference
-EntriesThe Entries parameter specifies the values that you want to add to the Tenant Allow/Block List based on the ListType parameter value:
-ExpirationDateThe ExpirationDate parameter set the expiration date of the entry in Coordinated Universal Time (UTC).
-ListTypeThe ListType parameter specifies the type of entry to add.
-NoExpirationThe NoExpiration switch specifies that the entry should never expire.
-AllowThe Allow switch specifies that you're creating an allow entry.
-BlockThe Allow switch specifies that you're creating a block entry.
-ListSubTypeThe ListSubType parameter specifies the subtype for this entry.
-LogExtraDetails
-NotesThe Notes parameters specifies additional information about the object.
-RemoveAfterThe RemoveAfter parameter enables the Remove on > 45 days after last used date feature for an allow entry.
-OutputJsonThe OutputJson switch specifies whether to return all entries in a single JSON value.
-SubmissionIDThis parameter is reserved for internal Microsoft use.