I've read through all the responses on the list but I'm responding to John's 
original message because so much of the responses have made critical 
assumptions about the nature of the FBL with Yahoo!.

John, can you simply clarify the rules/logic of your FBL with Yahoo!?  That 
will clarify this scenario considerably. 

________________________________________________

Brett McDowell
Technology Evangelist, Information Risk Management, PayPal




On Apr 23, 2010, at 12:34 AM, John Levine wrote:

> For anyone who's working on the list management BCP:
> 
> I sign all my outgoing mail, and I have a feedback loop set up with
> Yahoo, which being very modern and advanced keys on signatures, not IP
> addresses.  A few days ago I sent some messages to one of the Freebsd
> mailing lists.  Today some Yahoo user who subscribes to that list hit
> the spam button.  Freebsd's list software (Mailman, I think) doesn't
> sign, and doesn't strip any headers.  So what happened?  Yahoo saw my
> signature and sent the reports to me, which was of course useless
> since I don't run the list.
> 
> This is not a hypothetical problem--all of my recent Yahoo FBL reports
> have been for mail I sent to mailing lists elsewhere.  The lists I do
> run sign their mail, and FBL reports for those lists are handled
> reasonably. My scripts do what they can with this stuff, but sending
> unsub commands to majord...@freebsd.org doesn't work.
> 
> R's,
> John
> _______________________________________________
> NOTE WELL: This list operates according to 
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