Ever find yourself traveling with your notebook and discover that cannot send email through your normal SMTP server?
email server usually do not allow you to send email through them unless you are directly connected to their network or you use authentication.
You can now setup an SMTP outbound server on port 587 with authentication (usually your POP3 email username and password used to pickup your email). This will now allow you to send email through our server without being on our network.
Contact email@example.com if you need any further information.