Nah.  Simplelists spoofs the headers.

On Mon, Sep 1, 2014 at 6:30 PM, Phil Pugliese (via tml list)
<xxxxxx@simplelists.com> wrote:
> This email was sent from yahoo.com which does not allow forwarding of emails via email lists. Therefore the sender's email address (xxxxxx@yahoo.com) has been replaced with a dummy one. The original message follows:
>
> Made it thru to me.
>
> Looks as though GMail figured out a better way to go w/ DMARC than Yahoo did.
> ---------------------------------------------------------------------------------------------------------------------------
> On Mon, 9/1/14, Carlos <xxxxxx@gmail.com> wrote:
>
>  Subject: Re: [TML] DMARC
>  To: xxxxxx@simplelists.com
>  Date: Monday, September 1, 2014, 10:10 AM
>
>  Hm,
>  this comes from my gmail address (which I am in the process
>  of abandoning). Let's see what happens.
>
>  Carlos Alos-Ferrer
>
>
>  Carlos Alos-Ferrer
>  Professor of
>  Economics, University of Cologne
>  http://www.decisions.uni-koeln.de
>
>
>  On Mon, Sep 1, 2014 at 6:12
>  PM,  <xxxxxx@shadowgard.com>
>  wrote:
>
>  Gmail implemented DMARC a few days ago.
>
>
>
>  Unlike Yahoo, they set it up to *not* send bounce messages
>  back to
>
>  the list owner.
>
>
>
>  So the foirst I knew was when some folks on a list I run
>  told me
>
>  about it. That and the drop in traffic.
>
>
>
>  So, I figure the TML may need to add those stupid headers
>  for gmail
>
>  users too.
>
>
>
>
>
>  If the TML *isn't* having problems due to this, please
>  let me know
>
>  opn the off chance that there's some way I vcan salvage
>  *my* list.
>
>
>
>  --
>
>  Leonard Erickson (aka shadow)
>
>  shadow at shadowgard dot com
>
>
>
>
>
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