Mail Client Access To SMTP/Postfix
I set up Ubuntu 10.04 LTS on an EC2 Server Instance.
I can't send mail from Thunderbird, it's retrieves it, just can't send any.
I was successful otherwise, the squirrelmail web client works fine, so debugging is focused on how to get in authenticated.
I followed the ISPConfig 3 on Lucid tutorial.
Any ideas would be appreciated,