How do I know that my fax has been sent or has failed?

Normally, a fax service provider will have several way of notifying you whether your fax has been sent or has failed. The most common ways are:

1. By return email - with this method, once your fax has gone through successfully or has failed, an email is sent back to you telling you the result of the transmission.
2. Through a browser-based management interface - with this method, you can log into an internet-based account and see your list of outgoing faxes. The status of each individual fax will be visible there.