Working online and offline
Working online means working with your device connected to a remote mailbox through an Internet connection. When online,
you can delete, rename, or create new folders in your remote mailbox. When you work offline, which means that your device
is not connected to a remote mailbox, you can delete only messages, not folders.
Note that any changes you make in the remote mailbox folders while offline take effect in your remote mailbox the next time
you go online and synchronize.
If you delete an e-mail from your device when offline, the e-mail will be deleted from the remote mailbox the next time you
connect to the mailbox. You can delete a message from your device to save memory.
See "Avoiding low memory," p. 28.
Managing your e-mail offline enables you to save in connection costs and work in conditions that do not allow a data connection.