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Re: [FW-1] Mailing and SMTP traffic



> 1.) SMTP is way enough for mail. DNS and ident may be needed in parts,
>      depending on your actual setting. Plus maybe access from LAN
>      to DMZ for administration.
ident is rarely needed for mail, though many server attempt to use it. The
problem is that an smtp conection is initiated, then an ident request is
made in return. The firewall will drop the return connection and the ident
will timeout. Unfortunately, by the time this has happened, the smtp
connection has timed out as well.

If you have a mail server, you should add a rule which rejects ident
requests to the server, instead of just letting them be dropped. This will
prevent the timeout problem.

-Don

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