Sharing Some Scripts about Managing Exchange Calendar Permissions

1. Check Calendar permission for a specific mailbox:

Get-MailboxFolderPermission -Identity Test@cu1.com:\Calendar | FL

If you want to check whether a specific user has any special Calendar permission to a specified Calendar, we can run:

Get-MailboxFolderPermission -Identity Test@cu1.com:\Calendar -User Test2

2. Add Calendar permission for a specific user to a mailbox:

Add-MailboxFolderPermission -Identity Test@cu1.com:\Calendar -User Test1 -AccessRights Editor

3. A specific group or user can have special permission (Reviewer) to all users’ Calendar:

$all=Get-Mailbox -ResultSize Unlimited

$all | ForEach {Add-MailboxFolderPermission -Identity “$($_.alias):\Calendar” -User Group1 -AccessRights "Reviewer"}

This example assigns permissions for Test to access all room mailboxes' Calendar folder and applies the Editor role to his access of those folders:

$all=Get-Mailbox -RecipientTypeDetails RoomMailbox

$all | ForEach {Add-MailboxFolderPermission -Identity “$($_.alias):\Calendar” -User Test -AccessRights "Editor"}

4. Change Calendar permission for a user who has had related permission to a mailbox Calendar:

Set-MailboxFolderPermission -Identity Test@cu1.com:\Calendar -User Test1 -AccessRights Reviewer

5. Change all users’ Default Calendar permission in Exchange:

$all=Get-Mailbox -RecipientTypeDetails UserMailbox

$all | ForEach {Set-MailboxFolderPermission -Identity “$($_.alias):\Calendar” -User default-AccessRights "None"}

6. List Calendar permission for all user mailboxes in Exchange:

ForEach ($Mailbox in (Get-Mailbox -ResultSize Unlimited)) {Get-MailboxFolderPermission -Identity "$($Mailbox.Name):\Calendar" | Select @{n='Calendar';e={$Mailbox.Name}},User,AccessRights}

7. Export the Calendar permissions for all mailboxes in Exchange:

To Txt file:

$Results = ForEach ($Mailbox in (Get-Mailbox -ResultSize Unlimited)) {Get-MailboxFolderPermission -Identity "$($Mailbox.Name):\Calendar" | Select @{n='Calendar';e={$Mailbox.Name}},User,AccessRights}

To CSV file:

$Results | out-file -filepath C:\CalendarPermission.txt

$Results = ForEach ($Mailbox in (Get-Mailbox -ResultSize Unlimited)) { Get-MailboxFolderPermission -Identity "$($Mailbox.Name):\Calendar" | Select @{n='Mailbox';e={$Mailbox.Name}},User,@{Name='AccessRights';Expression={[string]::join(";", ($_.AccessRights))}}}

$Results | Export-Csv C:\permission8.csv

References:

https://social.technet.microsoft.com/Forums/en-US/80d6de56-0820-453c-8d3f-5982631aaf20/adding-editor-permissions-to-a-ad-security-group?forum=exchange2

https://social.technet.microsoft.com/Forums/en-US/00ebf670-15a8-4b49-9b6c-fe576e1d0161/changing-calendar-permissions-for-all-users-in-powershell?forum=

https://social.technet.microsoft.com/Forums/exchange/en-US/af85511b-25eb-48e2-8313-f97201b99dc1/script-to-pull-calendar-permission-of-all-users-in-domain?forum=exchange2010

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