Question : -ERR Protocol Error. 17

I hope someone can help.

I need to have a application collect mail from Exchange 2010 via Pop3, i have followed the instructions at:

http://www.msexchange.org/articles_tutorials/exchange-server-2007/mobility-client-access/using-pop3-imap4-access-exchange-2007-part1.html

But wheneven i telnet to the server i get:

  +OK The Microsoft Exchange POP3 service is ready.
  user support
  -ERR Protocol error. 17

I get the same error no matter what i type in my telnet session.

Does any one know how to solve this?

Answer : -ERR Protocol Error. 17

OK, Sorted...

For some reason when using Telnet the first response is always   "

                 -ERR Protocol error. 17"

On top of that who ever set up the Support user left the account set as "user Must Change Password at next logon"... as this is a service account no one will ever log in as this user so it was never going to prompt to change...

Everything is now working without issues...

I will share the points out accordingly as i would not have worked this out without your help thanks guys...