*[ANM Mlist 01 on Sat, Sep 08, 2001 at 11:39:28PM -0000]:
> When on my internal network clients send email using the exim host as the
> SMTP gateway. I see internal clients host name and IP address on the
> outbound message.
As this - below - is an RFC 1918 network, and non routable over the
'net, I don't see any rhyme or reason in your munging headers like
this.
That, plus think of how useful this header is going to be when one of
your lusers gets sircam on his box / starts a spam run through his
office mailserver (yeah, it happens - I just got spammed by an IBM
employee, with a make money fast scheme, the other day ...)
> Received: from internal_host1([192.168.1.11] helo=internal_hostl)
> by firewall.mydomain.com with smtp (Exim 3.31 #1 (Debian))
> id 15frSZ-0001Kh-00
> for <test@???>; Sat, 08 Sep 2001 17:24:23 -0600
> I have scanned the FAQs and mail archives and have note found a solution.
Perhaps because quite a few people here believe that security by
obscurity doesn't work?
> Does anyone have a suggestion?
Yes. Don't tamper with the headers.
Or run sendmail / any doze smtp server (IIS, Mercury etc) on all the
machines (I assume you have NAT enabled on your network) and have them
send direct to MX. That is, if you absolutely want to hide those
headers.
> Please CC me on any response.
You post here, you read here, normally. Still, as this response isn't
going to help you any, I've cc'd you.
-suresh
