Re: Microsoft O365 labels nanog potential fraud?

[William Herrin <bill () herrin us>]

On Wed, Mar 29, 2017 at 11:25 AM, Grant Taylor via NANOG <nanog () nanog org>
wrote:

> Every SPF implementation I've seen has checked the SMTP envelope FROM
> address /and/ the RFC 822 From: header address.

Hi Grant,

The gold standard, Spamassassin, does not. Indeed, the message to which I
reply was scored by spam assassin as "SPF_PASS" even though you do not
include NANOG's servers in the SPF record for tnetconsulting.net.

Regards,
Bill Herrin


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