How to get more info about courier-pop "login failed"

[Thomas Carrié <thocar@free.fr>]

Hi,

I've just setup a courier-pop server on a woody server.

I attempt to log with the plaintext scheme, I have an answer from the 
server "Login Failed".

Where can I find more information on the server about why the login has 
failed ?

server:/var/log# tail -f mail.log
Feb 23 19:05:14 server courierpop3login: Connection, ip=[::ffff:81.57.57.57]
Feb 23 19:05:19 server courierpop3login: LOGIN FAILED, 
ip=[::ffff:81.57.57.57]

doesn't help.

Is there a debug mode that print everything courier-pop is doing ?

Note : I have changed the authdameon to authmysql

Thanks for help