[FW1] Internal SMTP Server

["Mário" Behring <mariobehring@FW1-NOSPAMyahoo.com>]

Hi all,

I have the following simple scenario: a MS Exchange
Server to send and receive emails from the internal
network. The FW-1 is already doing static NAT and the
Exchange´s valid address is registered at the mx
parameter in a public DNS. 

The sending part (emails outbound) is already working,
but when you send an email from a webmail to a email
address on the internal Exchange, it never gets there.


The funny thing is that, looking at the FW-1 log we
can see a SMTP package passing through the FW-1
(inbound) and that the Source is an ISP IP address and
the Destination is the Exchange´s valid address (the
one configured at the static NAT). Doesn´t it mean
that the email is getting in the internal network?

Is there any configuration to be done at the Exchange
Server ?

Thanks in advance.

Mário

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