Method for determining user uniqueness in e-mail campaigns

1. A computer implemented method for determining user uniqueness in e-mail campaigns the computer implemented method comprising:

composing an e-mail, wherein the e-mail comprises a section, wherein the section is expandable to present additional content associated with the section;

placing a first instruction set in the-e-mail to form a modified e-mail;

placing a second instruction set in the modified e-mail; and

sending the modified e-mail to a distribution list, wherein the first instruction set is executed in response to the modified e-mail being opened, wherein the first instruction set identifies a reader of the modified e-mail based on an e-mail address of the reader and sends information to a collection device about the modified e-mail and an identification of the reader that opened the modified e-mail, and wherein the second instruction set is executed in response to the section being opened, wherein the second instruction set sends information associated with the section to the collection device, wherein the information associated with the section identifies a number of times the section is expanded within the modified e-mail.

2. The computer implemented method of claim 1 , wherein the placing step is executed by calling an application program interface to place the instruction set in the e-mail to form the modified e-mail.

3. The computer implemented method of claim 1 , wherein information about the modified e-mail comprises at least one of a date the modified e-mail was opened, a time the modified e-mail was opened, a date the modified e-mail was pre-viewed, a time the modified e-mail was pre-viewed, a subject of the modified e-mail, a name of an associated campaign, a user name, a browser type, an e-mail client type, a level of the e-mail client, whether the reader used a replica mailbox database, whether the reader used a master mailbox database, an internet sub-domain, and a transmission control protocol over internet protocol address.

4. The computer implemented method of claim 1 , wherein the instruction set comprises at least one of hypertext markup language and extensible markup language.

5. The computer implemented method of claim 1 , further comprising:

executing the instruction set in the modified e-mail when the modified e-mail is pre-viewed, wherein the instruction set sends information to a collection device about the modified e-mail and the reader that previewed the modified e-mail.