On 10/24, Dennis German wrote:
> Is there? should there be a rule for  a header like:
> To: undisclosed-recipients:;

There is a meta rule in spamassassin version 3.3.1:

header     __TO_UNDISCLOSED        To =~ 
/(?:undisclosed-recipients|destinataires inconnus):/i

It has no score on its own, and would match too much of my non-spam.
And it's entirely valid when all recipients are BCCed.

It hits 1.1% of non-spam according to:

http://ruleqa.spamassassin.org/20101023/__TO_UNDISCLOSED/detail

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"Whatever you do will be insignificant, but it is very important that
you do it." - Mahatma Gandhi
http://www.ChaosReigns.com

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