I am trying to access a pop server that we have setup. Everything is there and I can access the accounts via owa, but when I try and access via pop in outlook express I get the following error. I have tried using domain\username , domain\username\alias and alias@domain and even username@domain. I keep getting this message. I need this resolved asap. thanks.
UThere was a problem logging onto your mail server. Your User Name was rejected. Account: 'mail.domain.com', Server: 'mail.domain.com', Protocol: POP3, Server Response: '-ERR Cleartext login on this server requires the use of transport level security (SSL/TLS).', Port: 110, Secure(SSL): No, Server Error: 0x800CCC90, Error Number: 0x800CCC91