--On Thursday, May 03, 2018 1:16 PM -0500 David Jones <djo...@ena.com>
wrote:
I agree. Whitelisting or subtracting points should be tied to domain
authentication or IP reputation. Spammers are reading this email thread
and are already crafting emails to match this rule.
That's a fundamental problem with any filter that rewards senders for
following standards.
With this rule, the more sophisticated spammers will have to work harder to
get past the filters. Part of SA's objective is to make spam more expensive
to send. The dumb spammers will get caught more often. There's no spam-free
utopia. It's an arms race and we just do the best we can at any given
moment.
I considered keeping this rule to myself but it was working so well that I
wanted to share it, even though I risk decreasing its performance.
