Email Hosting Plan Storage

Email hosting plans allow for either 10 or 25 GBs storage per mailbox.

For POP3 users downloading messages off the server, storage will generally not be a big concern.  Similarly, IMAP users can avoid server storage accumulation by periodically archiving/moving messages from the mail server to their primary local mail client or archive service.

Check out this article for more information on the difference between IMAP and POP3.