Hi, I've installed Postfix, Courier-IMAP and Courier-Auth on a Slack current. When I try to send email thru the console, with mutt, it's working but if I try with Thunderbird or Kmail, it's asking my password and in /var/log/maillog i've got an error..
May 17 18:41:16 infected imapd: Connection, ip=[::ffff:127.0.0.1]
May 17 18:41:20 infected imapd: authdaemon: s_connect() failed: No such file or directory
May 17 18:41:20 infected imapd: LOGIN FAILED, user=phoenix, ip=[::ffff:127.0.0.1]
May 17 18:41:20 infected imapd: authentication error: No such file or directory


I only want to setup a lan mail server, I don't care about SSL and TLS
If anyone can help me troubleshoot this
Thank you !