SMTP extension to preserve per-message and per-recipient propert

Details SMTP extension to preserve per-message and per-recipient propert SMTP extension to preserve per-message and per-recipient propert

1997-12-08

2000-03-07

Rinehart, Mark H.

Electrical computers and digital processing systems: multicomput

Computer conferencing

Demand based messaging

709230, 709249, G06F 1338, G06F 1517

Patent

active

060353279

ABSTRACT:
The SMTP protocol takes a message formatted according to a defined internet standard and wraps the message in an envelope. The message and envelope are sent to servers for transfer through the Internet to their intended destination. The SMTP protocol strictly defines the information that is transferred in the envelope and the format of the message. There is thus a real possibility that when messages are transferred from one network into an SMTP network that information will either be lost or not transferred correctly. The present invention provides systems and methods that take advantage of defined mechanisms to extend the SMTP protocol in order to create the novel extension that allows the transfer of virtually any information after the envelope is transferred but before the message is transferred. The invention allows information usually contained in the message portion to be transferred in the envelope portion. The invention also allows the preservation and transfer of information that would otherwise be lost.

REFERENCES:
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patent: 5878220 (1999-03-01), Olkin et al.
Klensin et al.; RFC 1425; "SMTP Service Extensions", Feb. 1993.
Klensin et al.; RFC 1651; "SMTP Service Extensions", Jul. 1994.
Borenstein, N. et al.; RFC 1521; "MIME (Multipurpose Internet Mail Extensions) Part One: Mechanisms for Specifying and Describing the Format of Internet Message Bodies," Bellcore, Sep. 1993.
Crocker, David H., et al.; RFC 822; "Standard for the Format of ARPA Internet Text Messages," University of Delaware, Aug. 13, 1982.
Klensin, J., et al.; RFC 1869; "SMTP Service Extensions," MCI, Nov. 1995.
Klensin, J., et al; RFC 1870; "SMTP Service Extension for Message Size Declaration," MCI, Nov. 1995.
Moore, K.; RFC 1891; "SMTP Service Extension for Delivery Status Notifications,"; University of Tennessee, Jan. 1996.
Postel, Johnathan B.; RFC 821; "Simple Mail Transfer Protocol,"; University of Southern California, Aug. 1982.

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