Incoming SMTP in the year 2017 and absence of DKIM

[bill at herrin.us (William Herrin)]

On Wed, Nov 29, 2017 at 12:03 PM, Eric Kuhnke <eric.kuhnke at gmail.com> wrote:

> For those who operate public facing SMTPd that receive a large volume of
> incoming traffic, and accordingly, a lot of spam...
>
> How much weight do you put on an incoming message, in terms of adding
> additional score towards a possible value of spam, for total absence of
> DKIM signature?
>

Zero. DKIM for mailing lists is a horribly broken design and legitimate
mailing lists are second only to spam in quantity of SMTP transactions.

Regards,
Bill Herrin


-- 
William Herrin ................ herrin at dirtside.com  bill at herrin.us
Dirtside Systems ......... Web: <http://www.dirtside.com/>