On Thu, 16 May 2019, John Hardin wrote:

On Thu, 16 May 2019, Amir Caspi wrote:

On Apr 26, 2019, at 4:51 PM, RW <rwmailli...@googlemail.com> wrote:

header    BOGUS_MIME_VERSION   MIME-Version =~ /^(?!\s*1\.0).+/

it may be better to change that to

  /^(?!.*\b1\.0\b).+/

to avoid punishing the form

 Mime-Version: (Nosuch Mail 2.0) 1.0

which is valid, though I don't think I've ever seen it (comments are
usually on the right).

John, so many of my spams are hitting BOGUS_MIME_VERSION that I would imagine it's worth sandboxing and incorporating into the primary ruleset.

I've added both versions as unscored rules so we can see how they perform.

Masscheck doesn't think much of them:

https://ruleqa.spamassassin.org/20190529-r1860321-n/__BOGUS_MIME_VER_01/detail
https://ruleqa.spamassassin.org/20190529-r1860321-n/__BOGUS_MIME_VER_02/detail

The good news is their S/O is 1.00 (not that that means much given the small hit rate), and the bulk of the spams they hit currently score zero.

We could manually push them with score = 1.000, and let local admins decide whether to adjust the score.

Opinions solicited.

--
 John Hardin KA7OHZ                    http://www.impsec.org/~jhardin/
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