Server - Enter the SMTP server address.
Port - Enter the correct SMTP port for the mail server (25 by default).
Username (with domain) - Username for the email account to be used for sending.
Password - Password for the email account to be used for sending.
Retype password - Re-enter password.
Enable SSL - Enable this checkbox if SSL authentication is required by the mail server.
Send test e-mail - Verifies SMTP settings by sending a test email to the account designated above.