On 27.08.2012, Reindl Harald wrote:
your MTA get a connection and have the IP of the last machine
involved
in mail tzransmission, bit all other received headers before YOOR
machine are nOT trustable because i can write whatever i want
and how many received-headers i want and submit the message
directly to your MTA
You can't supress the Received header which is generated by the
receiving mailserver when you're delivering your mail. All your faked
headers will be beneath this one, because every MTA writes its
Received: on top of the existing one(s), so there is a fine line from the
sender to the receiver which can follows in both ways.
So unless you are connecting via an anonymizing service as e.g. the tor
network, it will be of little effect to add some fake Received
headers to hide your ass.