Error when sending email!?

[eXedon]

hi all,
i have using postfix/courier-imap/mysql.
when i use squirrelmail it's seem all ok, can send and receive email.
but when i try send email with roundcobe it's fail to send email, it's can get old email.

please advise me to solve this problem.

thank you,
eXedon

[oldschool]

Hi!

Take a look at ur config. R u using php-mail or smtp at localhost?

Rgds.