A. There are different ways this can be accomplished. We recommend using POP3 on your desktop, but add settings to leave mail on the server for 14-30 days. This allows your mailbox size to be virtually unlimited, while still having access to your mailbox from other devices. You can use IMAP on your mobile devices, or webmail if you’re using a guest computer account, and your recently received email will be available. However, as a caveat to the way POP3 works, mail you send from the desktop computer will only appear in the “sent items” folder of the desktop computer you sent it from, and will not on the mobile devices in webmail folders.