damian freelance:
> Hi, i have a problem with my 2 postfix instances. 2 separate IP's and
> coressponding domain names are setup on networking, they are working fine.
> I want second mail message (below) to have  <br>
> `Received: from firstInstanceDomain.com (firstInstanceDomain.com.
> [second.domain.ip])`  <br>
> instead of  <br>
> `Received: from secondInstanceDomain.com (secondInstanceDomain.com.
> [second.domain.ip])` <br>

The content of the Received: header is:

    Received: from client-helo-argument (hostname-of-client-ip-address
        [client-ip-address]) by server-myhostname ...

The SMTP client by default sends $myhostname in the EHLO command.

The purpose of the Received: header is to record what happened, not
to rewrite history to something prettier than what happened.

        Wietse

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