OK Ben.. I'm a litle lost.. I made a post to a list.. not using gmail
or yahoo.. or sbcglobal.. or any of those.. and it bounced from every
single facebook/att/sbsglobal subscriber to the list.. so is it posts
from? or to? or both? and do you see a fix in sight for this new set
of problems? with hotmail et al.. now yahoo et al affected.. that
pretty much decimates many of our email lists.

Thanks..


On 4/10/14, Ben Parker <[log in to unmask]> wrote:
> On Tue, 8 Apr 2014 10:40:34 -0700, "Eckstine, Nate"
> <[log in to unmask]> wrote:
>
>>Is installing DKIM the solution?
>
> No.  The problem is that Yahoo, in their DMARC specification for mail with
> a
> From: ****@yahoo.com address (and other international variations like
> *@yahoo.co.uk, *@ymail.com, *@rocketmail.com, etc.), chose to tell any and
> all ISPs that do inbound DMARC/DKIM checking,
>
>  "If the mail that says From: *@yahoo.com does not come from our own
> servers
> (defined by specific IP ranges), not only is it unreliable, and not OK, but
> you should not accept it at all, but reject it."
>
> So the ISPs that do inbound DMARC/DKIM checking are not really at fault.
> They are simply doing what Yahoo.com has told them to do.  Adding DKIM to
> your LISTSERV server won't help because mail with From: *@yahoo.com will
> come from the IP of your server which is not (and cannot be) in the IP
> range
> of acceptable IPs for mail with From: *@yahoo.com to be valid.
>

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