Looking into it, it has nothing to do with Google Mail. It's to do with the fact that some spammers have been using accounts on systems with Gossamer Mail installed to send out their nigerian scam emails. I don't know how many of these emails would have been sent, but I don't think it's enough to warrant it being added to those rules (and that's probably why it isn't in the default rule set).
The ruleset with the rule in question also has the following description:
However, I will look into making the header more flexible. Possibly moving it into the email_headers.txt file.
Adrian
The ruleset with the rule in question also has the following description:
Quote:
Unlike 70_sare_header0.cf, the 70_sare_header1.cf ruleset contains rules which do (or in the past have) hit ham during SARE mass-check tests. The S/O calculated by SA's hit-frequencies scripts are all at or above 0.900. This file also contains rules which hit only spam, but fewer than 10 spam in our mass-check tests. Systems which are highly sensitive to false positives and/or tight on resources may want to exclude this ruleset, pick and choose among its rules, or lower their scores.However, I will look into making the header more flexible. Possibly moving it into the email_headers.txt file.
Adrian
