Mailing List Archive

Re: Questions to False Positives
On 2022-08-25 at 10:34:17 UTC-0400 (Thu, 25 Aug 2022 14:34:17 +0000)
Kerstin Thomaßen <kerstin.thomassen@elmer-digital.de>
is rumored to have said:

> Is this issue known? Why is the color white in text marked as spam?

It's not. Your message apparently hits the rule HTML_FONT_LOW_CONTRAST
which currently has a very low score (0.001: an informational
placeholder) when used in a default configuration with network tests
enabled. If you're using a testing tool that doesn't require a full
delivered message, it may be using the 'ruleset 0' score (currently
0.713) which is more than a placeholder but far less than an absolute
'spam' classification.

SA rules express real-world partial correlations. Hitting
HTML_FONT_LOW_CONTRAST correlates weakly with a message being spam.
Alone, it WILL NOT cause your email to be marked as spam.

> I am happy for any tips or solutions beside changing the color.

Don't expect to get ANY message to never hit any negative SA rules at
all. If you insist on engaging in the public nuisance of HTML mail, you
*will* match some rules, likely totalling around 2. The default
threshold for SA to classify a message as spam is 5.0. If your total
score is below 5, most SA sites will deliver it unimpeded. If your total
score is between 3 and 5, SOME more strict sites may reject, quarantine,
or tag your mail. If your total score is below 3 and you're still
worried about it: take a break, step outside, touch grass.

One way to avoid that specific rule is to render problematic sections as
images. I don't advise that, as it is a path towards a complex of rules
that look at image/text ratio which are much riskier than
HTML_FONT_LOW_CONTRAST.


--
Bill Cole
bill@scconsult.com or billcole@apache.org
(AKA @grumpybozo and many *@billmail.scconsult.com addresses)
Not Currently Available For Hire