======VPOP3 Concepts======
Many questions we are asked are because people aren't clear about some of the 'concepts' or 'objects' in VPOP3. So here we explain what these things are:

  * [[What is:User|User]] (or Account)
  * [[What is:Mappping|Mapping]] (or Alias)
  * [[What is:Mail Collector|Mail Collector]] (or InMail)
  * [[What is:Mail Sender|Mail Sender]] (or OutMail)
  * [[What is:IMAP4]]