On 07/04/18 21:20, Bill Cole wrote:
On 7 Apr 2018, at 11:42 (-0400), Sebastian Arcus wrote:
Do the standards really require a message id to be in all lower case?
Of course not, and that's also not an accurate description of
MSGID_SPAM_CAPS.
A small minority of rules in SA are based on any external standard. They
are empirical and pragmatic, not legalistic. There is a complex analysis
of multiple mail streams used to generate scores for the rules and to
decide which rules are good enough to publish in updates, run on a daily
basis because it takes most of a day to run. The fact that
MSGID_SPAM_CAPS exists with that name (and mot with a 'T_' or
developer's tag prefix) implies that at some point in the past it was
reliable enough as an indicator of spam to be part of the default set.
Thank you Bill. That is useful to know.
