Resolution:
   make sure that you have just your username in the field (ex: bob not
   bob@ont.com)
   re-enter your password in all lower case letters (ex: bobpass not
   BobPASS)
   check to make sure that the username that you are entering really is your
   mail account username

How do I check for new messages?

If I check my mail on the webmail system can I see it at home?