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Network Security Focus-Linux
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Re: Hide internal address (Postfix)

Subject: Re: Hide internal address (Postfix)
Date: Wed, 11 Jan 2006 04:06:47 +0530
On 10/01/06 10:11 -0000, kucserak@post.sk wrote:
Hi everyone!

Iam using Postfix for mail delivery.If somebody inside my network send mail
outside the network, the recipient can see in the message header the
internal address of the sender host.I would like to hide it, or replace
it with the external address of my router.

Google is your friend.
To be precise, man 5 header_checks, see IGNORE and REPLACE there.

Keep in mind that this makes troubleshooting a lot harder, and trying to
hide the internal IP addresses does not gain you much.

Devdas Bhagat

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