Procedure

1. Go to Administration → System Settings → SMTP.
2. Type the Sender email address.
3. Specify the SMTP server settings.

   Option	Description
   Internal postfix server	Select this option to use the postfix server embedded in TippingPoint Advanced Threat Protection for Email as an SMTP server. Note Internal postfix is not available when operating in BCC mode and SPAN/TAP mode.
   External SMTP server	Select this option to specify a standalone SMTP server, such as Microsoft Exchange.
   Server address	Type the external SMTP server host name, IPv4 address or IPv6 address.
   Port	Type the external SMTP server port number.
   Connection security	Select a security protocol if required for the connection.
   SMTP server requires authentication	Select this option if connection to the SMTP server requires authentication. Note Make sure that you configure the user name and password correctly. An external SMTP server may refuse connection from TippingPoint Advanced Threat Protection for Email after the maximum number of unsuccessful authentication attempts has been reached. Clicking Test Connection checks the connection from TippingPoint Advanced Threat Protection for Email to the external SMTP server, but does not verify SMTP server authentication.
   User name	Type the user name used for authentication. Note This option is only available if SMTP server requires authentication is selected.
   Password	Type the password used for authentication. Note This option is only available if SMTP server requires authentication is selected.

4. Click Save.
5. (Optional) To test the connection to the external SMTP server, do the following:
   1. Click Test Connection.
   2. Type the recipient email address.
   3. Click OK.

      Note TippingPoint Advanced Threat Protection for Email does not send a test email message to the recipient.