We are in the middle of an IMAP migration. The [Gmail]\All Mail label from Google Apps appears to translate into a folder with duplicated copies of the messages. My account includes 18,400 plus emails in the [Gmail]\All Mail folder. It comprises 3.99GB of data. Migration of multiple users is starting to choke bandwidth and taking days to accomplish.
Assuming the user has filed his/her Inbox, Sent Items and other folders appropriately, can this [Gmail]\All Mail Folder be safely excluded from a migration without loss of data?
-Dan Dombos