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Re: Hiding one's email source username/hostname/ISP
From: |
Bob Carragher |
Subject: |
Re: Hiding one's email source username/hostname/ISP |
Date: |
Sun, 14 Mar 2021 10:20:52 -0700 |
On Wed, 10 Mar 2021 08:39:18 -0500 Jerry Heyman <jerry@hobbeshollow.com> sez:
> On Wed, 10 Mar 2021 06:53:34 -0500, David Levine <levinedl@acm.org> wrote:
>
> > Bob wrote:
> >
> > > I do see in the headers of your reply that the first "Received:"
> > > header uses "HiddenHostname" ... but also the FQDM(?) of your
Oops, that should've been FQD_N_. B-)
> > > Verizon connection
> >
> > FQDN, in this case for a dynamically assigned address so not
> > very useful to anyone other than Verizon. Though they choose
> > to provide a geographic hint, and "fios", in the name.
Right. I was hopeful that even that could be hidden. For
example, if I use the Gmail web interface, the Received: headers
indicate that it came from Gmail itself (which makes sense). I
was thinking it'd be useful to replicate that, even when I'm
actually sending it from my laptop _via_ the Gmail servers.
But:
> > > So, while I could hide the hostname of my laptop, I wouldn't be
> > > able to hide its "public"/ISP-assigned name (and IP address).
> >
> > Right, as Tom noted:
> >
> > 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"
>
> Not sure this is helpful, but for years I've hidden my actual
> host I send mail from which is
>
> unix.hobbeshollow.com
>
> by putting the following entries in my mts.conf
>
> localname: hobbeshollow.com
> masquerade: draft_from mmailid username_extension
>
> This allows me to send email as jerry@hobbeshollow.com.
> hobbeshollow.com is my domain.
> I pay a 3rd party to connect for my outbound mail from
> hobbeshollow.com a nominal fee annually because ATT turned off
> that capability about 18 months ago.
>
> > David
> >
> > https://lists.nongnu.org/archive/html/nmh-workers/2021-03/msg00012.html
> >
>
> jerry
> --
> // Jerry Heyman | The first law of economics is scarcity of
> // Amigan Forever :-) | resources. First law of politics, ignore
> \\ // heymanj at acm dot org | the first law of economics
> \X/ | -- Thomas Sowell
On Wed, 10 Mar 2021 12:10:18 -0500 Jerry Heyman <jerry@hobbeshollow.com> sez:
> On Wed, 10 Mar 2021 11:34:21 -0500, Ken Hornstein <kenh@pobox.com> wrote:
>
> > >by putting the following entries in my mts.conf
> > >
> > >localname: hobbeshollow.com
> > >masquerade: draft_from mmailid username_extension
> >
> > Just FYI ... we got rid of all masquerade support ... 9 years
> > ago? Definitely in nmh 1.4. Now, we didn't get rid of the
> > FUNCTIONALITY. Basically there were all these bizarre rules
> > around setting your "From" header that you could use the
> > masquerade entry to relax and we finally agreed that was
> > dumb, so we got rid of them and you can set your From header
> > to anything now. That line isn't harming anything, but you
> > can safely remove it if your nmh is reasonably up to date.
>
> Ken,
>
> My nmh is 1.7, so reasonably current :-)
>
> Since I created during the nmh/mh early days, I've not noticed
> the masquerade support was incorporated. the mts.conf file had
> served me well for all these years, and I just migrate the same
> one from upgrade to upgrade. Since no longer necessary, I'll
> remove it!
(If it helps, my NMH is also version 1.7.)
I use the "clientname" option because otherwise it is set to
"localhost.localdomain" (since I don't use "localname"), and that
has been shown to be a huge red spam flag.
But, I think I should not use the "localname" option.
If I correctly understand the implication of using it --
specifically, "the hostname nmh considers local" -- then I think
this would be problematic, as the alternative "local hostname"
I'd want to specify would be "gmail.com." But then, any time I
email "foo@gmail.com," NMH would try to deliver that locally
instead of sending it to the Gmail server, no? That'd result in
100% bounces, since not even my own Gmail username, "dnc2dnc," is
a valid login ID on my laptop. I suppose "bob@gmail.com" would
work, except I don't know them and so don't email them except by
accident. B-)
Bob
> Thanks!
>
> jerry
>
> >
> > The use of localname is fine; there are other ways to
> > accomplish that, but that's certainly one way of doing it.
> >
> > --Ken
> >
>
>
> --
> // Jerry Heyman | The first law of economics is scarcity of
> // Amigan Forever :-) | resources. First law of politics, ignore
> \\ // heymanj at acm dot org | the first law of economics
> \X/ | -- Thomas Sowell
- Re: Hiding one's email source username/hostname/ISP, (continued)
- Re: Hiding one's email source username/hostname/ISP, Ken Hornstein, 2021/03/07
- Re: Hiding one's email source username/hostname/ISP, Bob Carragher, 2021/03/10
- Re: Hiding one's email source username/hostname/ISP, Ken Hornstein, 2021/03/10
- Re: Hiding one's email source username/hostname/ISP, Bob Carragher, 2021/03/14
- Re: Hiding one's email source username/hostname/ISP, Ken Hornstein, 2021/03/14
- Re: Hiding one's email source username/hostname/ISP, Bob Carragher, 2021/03/16
- Re: Hiding one's email source username/hostname/ISP, David Levine, 2021/03/10
- Re: Hiding one's email source username/hostname/ISP, Jerry Heyman, 2021/03/10
- Re: Hiding one's email source username/hostname/ISP, Ken Hornstein, 2021/03/10
- Re: Hiding one's email source username/hostname/ISP, Jerry Heyman, 2021/03/10
- Re: Hiding one's email source username/hostname/ISP,
Bob Carragher <=
- Re: Hiding one's email source username/hostname/ISP, Ken Hornstein, 2021/03/14
- Re: Hiding one's email source username/hostname/ISP, Bob Carragher, 2021/03/16