Method and system for remotely sensing the file formats processed by an e-mail client

A method of sending and tracking E-mail messages, the method comprising:

• sending an E-mail message to an E-mail client over a communication network, the E-mail message comprising a statement identifying an applet;
• receiving, over the public network, a response from the E-mail client requesting the applet, the response comprising information identifying the E-mail message sent to the E-mail client;
• and
• upon receiving the response, storing information indicating that the E-mail message was opened at the E-mail client.

A method of sending and tracking E-mails, the method comprising:

• sending an E-mail to an E-mail client, the E-mail including a statement identifying a resource;
• receiving a message from the E-mail client requesting the resource;
• and
• responsive to receiving the message, storing information indicating that the E-mail was opened at the E-mail client.

A computer program product stored on a computer-readable medium for sending and tracking E-mail messages, the computer program product comprising:

• code for sending an E-mail message to an E-mail client, the E-mail message including a statement identifying an image;
• code for receiving a response from the E-mail client requesting the image, the response including information identifying the E-mail message sent to the E-mail client;
• and
• code for storing, upon receiving the response, information indicating that the E-mail message was opened at the E-mail client.

A computer program product stored on a computer-readable medium for sending and tracking E-mail messages, the computer program product comprising:

• code for sending an E-mail message to an E-mail client over a public network, the E-mail message comprising a statement identifying an applet;
• code for receiving a response from the E-mail client requesting the applet, the response comprising information identifying the E-mail message sent to the E-mail client;
• and
• code for storing, upon receiving the response, information indicating that the E-mail message was opened at the E-mail client.

A computer program product stored on a computer-readable medium for sending and tracking E-mail messages, the computer program product comprising:

• code for sending an E-mail message to an E-mail client, the E-mail message including a statement in a mark up language, the statement specifying a resource;
• code for receiving a response from the E-mail client requesting the resource;
• and
• code for storing, responsive to receiving the response, information indicating that the E-mail message was opened at the E-mail client.

A computer system for sending and tracking E-mail messages, the computer system comprising:

• a processor;
• and
• a memory coupled to the processor, the memory configured to store a plurality of code modules for execution by the processor, the plurality of code modules comprising:
• a code module for sending an E-mail to an E-mail client, the E-mail including a statement identifying a resource;
• a code module for receiving a message from the E-mail client requesting the resource;
• and
• a code module for storing, responsive to receiving the message, information indicating that the E-mail was opened at the E-mail client.