On 2022-08-25 at 10:34:17 UTC-0400 (Thu, 25 Aug 2022 14:34:17 +0000) Kerstin Thomaßen <kerstin.thomas...@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 b...@scconsult.com or billc...@apache.org (AKA @grumpybozo and many *@billmail.scconsult.com addresses) Not Currently Available For Hire
