System and method of spam proof e-mail bounce tracking

Electrical computers and digital processing systems: support – Multiple computer communication using cryptography – Particular communication authentication technique

Reexamination Certificate

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Details

C713S155000, C713S156000, C713S157000, C713S158000, C713S159000, C713S168000, C705S067000, C380S229000, C726S022000

Reexamination Certificate

active

07984297

ABSTRACT:
A system may account for the number of bounced e-mails by adding a number of records over the desired quantity to ensure that a minimum number of e-mails are not returned. To calculate an accurate number of extra records to identify, a system may need to track the percentage of messages returned and add a number of records equal to that percentage over the minimum number required by the particular campaign. However, unless the system accurately identifies a bounced e-mail as one originating from the system, spam or other unsolicited e-mail sent to the system may result in inaccuracies.

REFERENCES:
patent: 2004/0054887 (2004-03-01), Paulsen et al.
patent: 2004/0063442 (2004-04-01), Goldberg
patent: 2005/0076084 (2005-04-01), Loughmiller et al.
patent: 2007/0172066 (2007-07-01), Davin
The qmail-send Bounce Message Format (QSBMF), D. J. Bernstein, http://cr.yp.to/proto/qsbmf.txt, dated Feb. 1, 1997.
Some Bounces Handled by Ezmlm, D. J. Bernstein, http://cr.yp.to/docs/somebounces.html, dated: Aug. 4, 1997.

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