Application gateway firewalls

["Shimon Silberschlag" <shimons () bll co il>]

In a world where most firewalls are mainly of the stateful inspection
variety, which products would you still consider as being mainly application
gateway firewalls? I know that almost all the products  are hybrid these
days to accommodate protocols with no proxy support, so lets limit this to
being "full" proxy firewalls for the most popular protocols (HTTP, SMTP, FTP
etc.)

Pls reply off-list only and I'll summarize for the list.

TIA,

Shimon Silberschlag

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