06986037 is referenced by 26 patents and cites 46 patents.

An electronic mail (“e-mail”) system is described that enforces authentication or encryption to/from Mail Transfer Agents and from Mail User Agents. In one embodiment, for example, an electronic mail (e-mail) system is described that comprises: a message transfer agent (MTA) available for a client to connect to; program logic for authenticating the client, through use of a certificate, in order to identify the client as approved for establishing a secured connection with the MTA; program logic for establishing a secured connection between the client and the MTA in instances where the client can be authenticated; program logic for testing encryption strength of the secured connection; and program logic for terminating the secured connection in instances where the secured connection has inadequate encryption strength.

Title
Electronic mail system with authentication/encryption methodology for allowing connections to/from a message transfer agent
Application Number
9/585701
Publication Number
6986037 (B1)
Application Date
May 31, 2000
Publication Date
January 10, 2006
Inventor
Claus Assmann
Berkely
CA, US
Agent
John A Smart
Assignee
Sendmail
CA, US
IPC
H04L 9/00
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