Cant send but receive okay

Hello all.

Here's my mail.err after trying to send mail via squirrelmail:

Sep 21 20:49:03 server imaplogin: LOGIN FAILED, ip=[::ffff:127.0.0.1]
Sep 21 20:49:03 server imaplogin: DISCONNECTED, ip=[::ffff:127.0.0.1], time=5
Sep 21 20:52:55 server imaplogin: LOGIN FAILED, ip=[::ffff:127.0.0.1]
Sep 21 20:53:11 server imaplogin: LOGIN FAILED, ip=[::ffff:127.0.0.1]
Sep 22 16:24:58 server imaplogin: LOGIN FAILED, ip=[::ffff:127.0.0.1]
Sep 22 16:24:58 server imaplogin: DISCONNECTED, ip=[::ffff:127.0.0.1], time=5
Sep 22 16:25:13 server imaplogin: LOGIN FAILED, ip=[::ffff:127.0.0.1]
Sep 22 16:25:13 server imaplogin: DISCONNECTED, ip=[::ffff:127.0.0.1], time=5
Sep 22 16:27:01 server courierpop3login: LOGIN FAILED, ip=[::ffff:127.0.0.1]
Sep 22 16:27:17 server courierpop3login: LOGIN FAILED, ip=[::ffff:127.0.0.1]
Sep 22 16:33:32 server courierpop3login: DISCONNECTED, user=web5_scott, ip=[::ffff:127.0.0.1], top=0, retr=0, time=0
Sep 22 16:34:02 server courierpop3login: DISCONNECTED, user=web5_scott, ip=[::ffff:127.0.0.1], top=0, retr=0, time=0
Sep 22 16:36:35 server imaplogin: LOGIN FAILED, ip=[::ffff:127.0.0.1]
Sep 22 16:36:35 server imaplogin: DISCONNECTED, ip=[::ffff:127.0.0.1], time=5
Sep 22 16:36:41 server imaplogin: LOGIN FAILED, ip=[::ffff:127.0.0.1]
Sep 22 16:37:04 server imaplogin: LOGIN FAILED, ip=[::ffff:127.0.0.1]
Sep 22 16:39:35 server imaplogin: LOGIN FAILED, ip=[::ffff:127.0.0.1]
Sep 22 16:39:53 server imaplogin: LOGIN FAILED, ip=[::ffff:127.0.0.1]


What is going wrong? Can't log into imap or courier?

What do I need to check for?