FAQ - POP3 versus IMAP

What is the difference between POP and IMAP email?


  1. POP mail downloads messages off of the server on to the machine where the email is being opened.
  2. You won't be able to view POP (downloaded) messages from any other machine.
  3. Anyone with access to your computer can read your downloaded messages.
  4. Generally, POP mail does not work well for faculty, staff or students who need to view their email from several locations.
  5. POP mail has no quota. The only limitation is your hard drive size.


  1. Your IMAP messages are stored on your personal email account on the mail server in the Computer Center Operations room.
  2. You can access your email from any computer using IMAP compatible email software. (eg. from home, labs, kiosks, webmail)
  3. You must supply the email password once per session: the 1st time you open your inbox and the 1st time you send a message.

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Category: Email     Platform: Not Applicable
Document #: 94     Author: Cynthia Senicka    
Last Modified by: Cynthia Senicka on 02/24/2012