> On Mon, Jan 11, 2010 at 10:10, Richard <> wrote:
>> I had this (I think) recently; mail simply stopped coming from the
>> list and I can't remember unsubscribing (though that's not saying
>> much...). I simply re-subscribed and all was dandy again.
>     Quite possibly caused by malformed headers or SPAM being rejected
> by the filters and bounced back to the list.  Two bounces and a tracer
> is sent.  If that fails as well (and they usually do), you're
> unsubscribed without further notice.  It happens to me all the time on
> the Windows list (now that I think about it, I think it happened
> again).

I occasionally see the tracers from various lists, particularly It seems some list server software fails to clean up
the routing headers occasionally. Our boundary spam filters reject them
as having been forwarded too many times, indicating a possible mail
loop. I believe I have been unsubscribed from more than one list for
this reason.

Bob McConnell

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