[Mailman-Users] Bounce Question

Jeff Grossman jeffg at turners.com
Tue Mar 15 21:41:02 CET 2011

On Tue, 15 Mar 2011 11:24:25 -0500, Barry Finkel <bsfinkel at anl.gov> wrote:
> On 03/15/11 09:57, Dennis Putnam wrote:
>> Due to some long time configuration issues, which have now been
>> resolved, I think was missing some list events. Now I have to play
>> catchup. I am not sure how bounce processing works. Lets assume that a
>> list member's email address goes bad. Exactly what happens to the
>> bounced message and how does the list owner get notified? Assuming the
>> owner missed those notifications, how can (s)he tell which users have
>> invalid addresses? Thanks.
> The bounce score begins at 0.0.
> Each bounce (only one per day is counted) increases the score by
> 1.0 or 0.5 depending upon if the -bounces processing detects a
> soft error or hard error.  Once the bounce score reaches 5.0,
> the subscription is set to NOMAIL, and for three successive
> weeks, once per week, a test mail is sent to the address asking
> the subscriber to re-confirm.  If there is no response to these
> three mailings, then the address is unsubscribed.  All of these
> parameters are configurable.  The bounced mail that triggers
> the 5.0 score is sent to the list owners, the previous bounce
> messages are discarded.  The unsubscribe notice is sent to the
> list owners.
> I run a report daily
>       http://veenet.value.net/~msapiro/scripts/get_bounce_info.py
> that tells me for each Mailman list, each subscriber that has a
> bounce score greater than zero.  I review the report daily to
> spot bad addresses.
> Look at the Mailman logs
>       /var/log/mailman/bounce
> and maybe other logs in that directory.

Are you sure about the 1.0 and 0.5 score based on soft and hard failure? 
I think Mark has said previously that a soft and hard bounce both get
scored as 1.0.


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