Re: [Evolution] per-message From: header

[Carl Schaefer <schaefer trilug org>]

On Mon, 2015-04-06 at 13:17 -0700, Craig wrote:
> On Mon, 2015-04-06 at 08:51 -0400, Adam Tauno Williams wrote:
> > Quoting Carl Schaefer <schaefer trilug org>:
> > > I like to give a different email address to everybody who asks so that
> > > it's easy to blacklist the ones that attract spam.  For example:
> > > hertz mydomain com
> > > jetblue mydomain com
> > > hyatt mydomain com
> > > etc.
> > > Is there a way to get Evolution to send mail with a custom From: header
> >
> > No clue, probably not.
> >
> > This is a bad idea, and it will not accomplish your goal.
>
> It may be a bad idea, for reasons I'm not aware of (unless you enlighten
> me), but it does indeed accomplish *my* goal, which seems to be the same
> as Carl's.
>
> > All this does is defeat the purpose of e-mail, which is communication.  
> >   You are just making yourself more difficult to communicate with, and  
> > accomplishing nearly nothing.
>
> Well, if the "supplier address" (as I call it) starts receiving spam and
> I cancel the address, it does indeed make it difficult for the spammer
> to communicate with me, which is exactly the accomplishment I'm looking
> for. I've been using this approach for years, and find it far preferable
> to lying awake at night wondering whether or not a spam filter has
> caught a legitimate message I'll never see. I use no spam filtering at
> all, except for configuring my MTA to use reputable IP blacklists with
> the addition of a few specific domains.
>
> Surely it's up to the receiver to decide whether or not he/she wants to
> be difficult to communicate with. I don't understand your hostility to
> the idea.

I don't either.  It sounded like flame bait, which I was about to take,
but as it seems generally out of character for him I'm inclined to chalk
it up to something going on that I don't know about and ignore it.

To add some technical content here, I've been able to get the effect I
want with 3.12 by pointing Evolution to a custom sendmail binary that is
actually a script that applies some header rewrite rules before
invoking /usr/bin/sendmail.  It works, except that what gets saved in
the Sent folder doesn't show the rewritten headers.

I'd hoped an outgoing message filter could be used for this, but it
seems "Pipe to Program" is output-only, i.e. Evolution doesn't use the
output of the program (which makes the "output filter" not actually a
filter, IMO).

Looking forward to 3.16
Carl