Changing bounce_score_threshold punts subscribers

[Fehwalker-users]

As described in my post to mailman-users on Nov 16th.
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I'm using Mailman 2.1.5.

I ran into a situation today where a list owner changed
the bounce_score_threshold from 7 to 3, and 55
subscribers were disabled when cron/disabled ran. Most
of these users haven't seen a bounce in at least weeks,
in some cases years, but they all did have bounce
scores over 3 and under 7.

I'm unsure exactly why this happened, I thought there
were things in place to handle this (removing stale
bounce info, bounce probe
emails). From my mail logs it looks like Mailman sent
an email to the subscriber and the list owner at the
same time. I don't know what was in the mail to the
subscriber, but the list owner got this:

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Subject: Bounce action notification
Date: Tue, 16 Nov 2004 09:00:18 -0500
From: <email address hidden>
To: <email address hidden>

This is a Mailman mailing list bounce action notice:

   List: Trawlers-and-trawlering
   Member: [elided]
   Action: Subscription disabled.
   Reason: Excessive or fatal bounces.

The triggering bounce notice is attached below.

Questions? Contact the Mailman site administrator at
<email address hidden>.

------------------------------------------------------------------------

[disabled by periodic sweep and cull, no message available]
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In the Mailman bounce log for that same address I see:

Nov 16 09:00:18 2004 (89086) trawlers-and-trawlering:
[elided]
disabling due to probe bounce received

The last info I have for that address in the bounce
logs before this is:

Oct 30 00:07:48 2004 (748) [elided]:
trawlers-and-trawlering current bounce score: 4.0

From what I can see all of the 55 subscribers disabled
today are
digest subscribers, but their digest is being
successfully delivered
every day.
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