Re: Hiding one's email source username/hostname/ISP

[Tom Lane]

Bob Carragher <dnc2dnc@gmail.com> writes:
> In emails that I send, if you look at the Received: header chain,
> you'd find a line that resembles,

>      Received: from Hikaru (xxxxx.comcast.net. [IP-address])
>       by smtp.gmail.com [...]

Received: lines are generally added by each MTA that the message
passes through.  In this case it was smtp.gmail.com that added that;
it's not under your control.  You can probably modify the "Hikaru"
part, as I believe that just comes from the HELO command your mail
client uses.  I'm not sure which part of the nmh configuration
that comes from, but it can't be too hard to find.

Keep in mind that Received: lines that look falsified in any way
are universally treated as a sure sign of spam.

                        regards, tom lane