I'm receiving the follow messages in postfix suse linux. 10.3
May 28 09:21:27 ns pop3: badlogin: agf.censa.com.ni [192.168.2.23] DIGEST-MD5 authentication failure
Clients can not receive emails, when I try to connect to the mail server, Outlook can not download any email even though they are in the mailbox.
My question is, how can I change the mode of authentication?