Get Mailbox Folder Statistics that includes Dates of the Oldest and Newest Mail Items
Get-MailboxFolderStatistics
rdanie21 -IncludeOldestAndNewestItems | Sort name | Select Name,
Folderpath, ItemsInFolder, FolderSize, OldestItemReceivedDate You want to list the mailbox folders for a mailbox and include the date of the oldest item within that folder.
Run the following:
Get-MailboxFolderStatistics
mailbox -IncludeOldestAndNewestItems | Sort name | Select Name,
Folderpath, ItemsInFolder, FolderSize, OldestItemReceivedDate