Methods and systems for securely delivering electronic mail to hosts having dynamic IP addresses
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Aug 13, 2002
Grant Date -
Jan 10, 2002
app pub date -
Sep 15, 1998
filing date -
Sep 15, 1998
priority date (Note) -
In Force
status (Latency Note)
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Abstract
The present invention includes methods and systems for securely delivering electronic mail to electronic mail servers having dynamic IP addresses. Before requesting mail delivery, a receiving mail server having a dynamic IP address registers its dynamic IP address along with a receiving mail server code in memory accessible by a dynamic name server. The receiving mail server code is preferably also stored with the domain name for which the receiving mail server receives mail in memory accessible by a private name server. In response to a request for mail delivery, a delivering mail server utilizes the receiving mail server code stored in memory accessible by the private name server and the dynamic name server to determine the dynamic IP address.
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