Show user rights/access to other mailbox with power shell O365
Show rights with power shell O365 $Credential = Get-Credential $ExchangeSession = New-PSSession -ConfigurationName Microsoft.Exchange -ConnectionUri “https://outlook.office365.com/powershell-liveid” -Credential $credential -Authentication “Basic” -AllowRedirection Import-PSSession $ExchangeSession Get-Mailbox | Get-MailboxPermission -User user@domain.nl