Hi Guyz
I just downloaded and configured RoundCubeMail and had same issue.... i checked log file and was getting Authentication Error..
anyhow, i did empty all the values for smtp settings like below,
$rcmail_config['smtp_server'] = '';
$rcmail_config['smtp_port'] = 25;
$rcmail_config['smtp_user'] = '';
$rcmail_config['smtp_pass'] = '';
so when smtp server has no value program use PHP's
mail() function to send emails.
i am fine with this now.
Coooooooooooool.......