does anyone have there email setup on Mozilla Thunderbird? I'm receiving emails fine, but for the life of me I can't send emails out.

These are the settings I'm using




when I try to send something out I get

"Login to server smtp.snap.net.nz failed. Sending of message failed.
The message could not be sent using SMTP server smtp.snap.net.nz for an unknown reason. Please verify that your SMTP server settings are correct and try again, or contact your network administrator."