When I run this cmdlet, I get the following result:

[PS] C:\Windows\system32>Get-MailboxFolderStatistics user | ft FolderPath, FolderSize -autosize

FolderPath FolderSize ---------- ---------- /Top of Information Store 156 B (156 bytes)
/Calendar 244.2 KB (250,025 bytes)
/Contacts 1.223 MB (1,282,252 bytes)
/Contacts/SenderPhotoContacts 30.41 KB (31,139 bytes)
/Conversation Action Settings 0 B (0 bytes)
/Conversation History 206.2 KB (211,147 bytes)
/Deleted Items 1.449 MB (1,519,602 bytes)
/Drafts 472 B (472 bytes)
/Inbox 618 MB (648,025,798 bytes)
/Journal 144 B (144 bytes)
/Junk E-Mail 131.9 KB (135,089 bytes)
/News Feed 0 B (0 bytes)
/Notes 1.847 KB (1,891 bytes)
/Outbox 0 B (0 bytes)
/Quick Step Settings 0 B (0 bytes)
/RSS Feeds 0 B (0 bytes)
/Sent Items 6.754 KB (6,916 bytes)
/Suggested Contacts 9.316 KB (9,540 bytes)
/Sync Issues 0 B (0 bytes)
/Sync Issues/Conflicts 0 B (0 bytes)
/Sync Issues/Local Failures 0 B (0 bytes)
/Sync Issues/Server Failures 0 B (0 bytes)
/Tasks 7.994 KB (8,186 bytes)
/Recoverable Items 12.16 MB (12,748,519 bytes)
/Deletions 0 B (0 bytes)
/Purges 0 B (0 bytes)
/Versions 0 B (0 bytes)

But when I open the mailbox using both Outlook and OWA, the deleted items folder is empty. I'm guessing it's corrupted or something like that. Is it possible to recover it somehow?

Thanks.