E-mail firewall

Details E-mail firewall E-mail firewall

2006-12-19

2008-05-27

Moise, Emmanuel L (Department: 2137)

Information security

Access control or authentication

Network

C380S030000, C380S282000, C713S154000, C713S156000, C713S170000

Reexamination Certificate

active

07380274

ABSTRACT:
An e-mail firewall (105) applies policies to e-mail messages (204) between a first site and a plurality of second sites in accordance with a plurality of administrator selectable policies (216). The firewall comprises a simple mail transfer protocol (SMTP) relay (202) for causing the e-mail messages (204) to be transmitted between the first site and selected ones of the second sites. A plurality of policy managers (216) enforce-administrator selectable policies. The policies comprise at least a first source/destination policy (218), a first content policy (202) and a first virus policy (224). The policies are characterized by a plurality of administrator selectable criteria (310), and a plurality of administrator selectable exceptions (312) to the criteria.

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