[Coco] yahoo groups
kevdig at hypersurf.com
Sat Apr 21 01:43:41 EDT 2007
John E. Malmberg wrote:
> Your mail server should be writing a line in the headers that shows the
> host name that the sending mail server claimed to be (can be forged),
> and in parentheses, the rDNS name and the I.P. address of the sender
> which can not be forged.
> Every other line in the message header is suspect and can be forged.
This is the last received from entry (farthest from your server), right?
Sometimes I see the phrase "may be forged" in there somewhere. Where
does that come from?
Could you possibly show an example of what can and cannot be forged?
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