Using Microsoft’s recently released Exchange Online PowerShell V2 Module, we can easily find IMAP and POP from mailboxes in Office365 via Powershell.
Finding IMAP and POP Mailboxes, Powershell V2:
Get-EXOCASMailbox -Filter {IMAPEnabled -eq $True -or POPEnabled -eq $True}
If you’d like to disable, take a look at my next post about doing that!