Re: [Exim] Hiding originatin IP?

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Autor: Matthew Byng-Maddick
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A: exim-users
Assumpte: Re: [Exim] Hiding originatin IP?
On Sat, Dec 21, 2002 at 06:05:30PM +0100, j2 wrote:

Moral of the week, do not go on holiday the week before christmas, you'll
come back to find your exim mailbox filled with three-hundred odd emails.

> > RFC1918 = Not routable over the 'net, and not viewable over the 'net at
> > all.
> I know.


Would that this were the case.

What it can reveal, however, is details about your internal network layout,
however, if someone manages to crack your firewalling anyway, then these
details are most likely similarly easy to find out.

> > So what is the fricking point?
> "cause they say so?"


While not relying on security by obscurity, giving out the minimum
necessary information is potentially not a bad thing.

> > Would screw you the very next time you got yourself a mail loop / sircam
> > infected computer or whatever.
> I know. And this has been pointed out to them, but they still want it.


does "headers_remove = Received" help you at all in your outbound mail
router ?

Oh, and btw, happy christmas, all

MBM

--
Matthew Byng-Maddick         <mbm@???>           http://colondot.net/