I have a list of mailboxes that are inactive, but can't be purged. One of these mailboxes is for jdoe@example.com Text Get-Mailbox -identity 'jdoe@example.com' -Softdeletedmailbox | Select Name, DisplayName, MicrosoftOnlineServicesID, ExchangeGuid result Text Name DisplayName MicrosoftOnlineServicesID ExchangeGuid ---- ----------- ------------------------- ------------ Jon Doe Jon Doe jdoe@example.com d9bxxxxxxxxxxxxxxxxxxx Clearly, the mailbox exists in some form.