So what are you guys saying now: that it is *likely* to get forged emails using 
specialized means?

I still give myself benefit of the doubt and verify my remote contact through 
live interaction like phone calls and the like.

On Sat, 13 May 2006 18:04:47 +0800
"Roger Filomeno" <[EMAIL PROTECTED]> wrote:

> >The real kicker is using a customised smtp server or a network of smtp
> servers.
> you can use fsockopen to connect to an open relay server, then most
> servers also removes the client's sender IP in which case it will just
> lead you to a dead end at the mail server's IP
> 
> :)
> 
> On 5/13/06, Rogelio Serrano <[EMAIL PROTECTED]> wrote:
> >
> > On 5/13/06, Eri Mendz <[EMAIL PROTECTED]> wrote:
> > > So ang huling "Received: from" pala matutukoy. Pwde ba to ma forge or
> > no? In my case im looking at several emails that i have suspicion with
> > however the originating ip's point to the same location. The strange
> > thing is: in the email body the company address shown is different,
> > eg., UK ang office pero ang ip origin Nigeria. Possible ba to?
> > >
> > > Thank you Peter sa input mo.
> > >
> >
> > All headers in an smtp email can be forged.
> >
> > The "received from:" header chain cannot be forged though. Additional
> > entries can be added before the email is actually sent. and the real
> > ip can actually be found after  the first few inserted headers.
> >
> > The real kicker is using a customised smtp server or a network of smtp
> > servers.
> >
> > The only practical way to protect yourself from forged smtp headers is
> > to use signed email or use x.400 ;-)
> >
> > I heard the us military is using x.400 email to send and receive data.
> > Even among planes and tanks. Imagine what it would be like if they
> > used smtp instead.
> >
> > --
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> 
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