This section describes some tips for POP users. Note that what might seem "limitations" are usually inherent features of the POP protocol; i.e., PMDF is limited by the fact that you are using a POP client. IMAP is a richer protocol so IMAP clients can have more capabilities; if you find yourself wanting to do things with your e-mail that you cannot seem to achieve with a POP client, you might want to investigate whether there are any IMAP clients that would suit you better.