After clicking Send Fax on the Compose Fax dialog, a warning message may appear informing you that the client encountered an error while attempting to deliver the fax. This is usually due to an error in your Client Properties configuration — a partial transcript of the delivery attempt will be displayed to help you diagnose the problem. Click Open Properties to open the Client Properties dialog so that you can check your settings. The mail server and dialup settings information on this dialog must be entered properly in order for the client to be able to deliver messages. Make sure that the correct IP address or domain name of your mail server has been entered on the Server Settings pane and that correct ISP account information has been entered on the Dialup Settings pane (if using the dialup features). You can also click Send again if you wish to try to send the fax again or Cancel fax to cancel it.