how to setup external mail client to send mail
i setup a server with this tutorial:
The Perfect Server - Debian Squeeze (Debian 6.0) With BIND & Courier [ISPConfig 3]
then i installed roundcube instead of the squirrelmail
i can send and recieve mail with roundcube (webmail)
but when i try to setup a desktop email client like thunderbird,
i can only receive emails i cant send them.
i believe that i have tried using the submission port,
but that doesnt work wither,
thanks in advance.