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Re: Removing IP address in headers

From: /dev/rob0 (rob0gmx.co.uk)
Date: Sun Oct 23 2005 - 11:47:48 CDT


On Sunday 2005-October-23 09:13, Dominique VOLPE wrote:
> My boss asked me to anonymize the "Received" header generated by my
> Postfix server.

Real anonymity is not possible ...

> Thus, I would like to replace the server name and remove it's IP
> address, but I want to preserve the original date and time.

... And I don't see the point. You can only fool users of your own
server, whether they be local or of some other address class. Surely
they know (and NEED to know) the IP address and name of your server?

When your server sends mail to mine, mine will add its own Received:
header, containing your server's IP and reverse DNS. You cannot hide
that, unless you're using compromised machines (spam zombies) or open
relays. And in the latter case the relay is likely to add its own
Received: header with your server's IP and rDNS.
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