SYSTEM AND METHOD for SENDING, DELIVERY OR RECEIVING OF FAXES, OVER A COMPUTER BASED NETWORK ACCORDING TO SECURITY OR OTHER PROTOCOLS

A method, comprising:

• determining that there is a Direct address associated with a destination telephone number for a received fax, wherein the Direct address is an email address linked to an associated certificate that confirms the identity of a domain name or address;
• initiating a sending of a Direct message with a document of the fax to the Direct address associated with the destination telephone number for the received fax;
• determining if a delivery failure notification is received in response to the sending of the Direct message to the Direct address associated with the destination telephone number for the received fax;
• and
• when the message delivery failure notification is received, initiating the sending of the document of the fax to the destination telephone number over a Publicly Switched Telephone Network (PSTN) or over a computer network to an email address associated with the destination telephone number.

A non-transitory computer readable medium comprising instructions for:

• determining that there is a Direct address associated with a destination telephone number for a received fax, wherein the Direct address is an email address linked to an associated certificate that confirms the identity of a domain name or address;
• initiating a sending of a Direct message with a document of the fax to the Direct address associated with the destination telephone number for the received fax;
• determining if a delivery failure notification is received in response to the sending of the Direct message to the Direct address associated with the destination telephone number for the received fax;
• and
• when the message delivery failure notification is received, initiating the sending of the document of the fax to the destination telephone number over a Publicly Switched Telephone Network (PSTN) or over a computer network to an email address associated with the destination telephone number.