On Wed, 25 Jun 2014 23:32:23 +0100, Mark Sapiro <[email protected]> wrote:

On 06/25/2014 02:41 PM, Malcolm Austen wrote:
I won't call this a bug but I think it's an issue :-)

It is an issue. I too am not sure whether it is a bug, but I think we
need to do something about it. More below ...

Thanks Mark. For the time being I have removed AOL and Yahoo from that spam filter and marked all such addresses as 'moderated'. I'm guessing though that allowing them through would still escape the DMARC munging - so I've told the list that it's no longer accepting posts from AOL or Yahoo.com.

(I note that neither yahoo.co.uk nor aol.co.uk have published a DMARC policy.)

I have (via the GUI sender filters) dmarc_moderation_action set to
'munge from' and yet a post from aol.com went through unmunged (and
caused 100+ subscribers to be disabled).

This implies that the list's bounce_score_threshold is <= 1.0 so that a
member's delivery is disabled on the first bounce. This may be too
agressive.

I'm not that mean :-)

I should have made it clear that this message was the trigger rather than the lone cause.

I did (before I had 2.1.18-1 available) toy with setting it high (c.9 or 10) and setting bounce_info_stale_after down to 1 so that I could let aol/yahoo posts out in a burst on one day and then hold them for a couple of days to clear the bounce scores.

Also, you may be interested in
<http://www.msapiro.net/scripts/reset_bounce.py>.

I would if I weren't restricted to the GUI :-(

Thanks though, if think get tough though, I could probably get my provider to run the script for me.

Thanks for all your (and others) work on mailman, Malcolm.

--
Malcolm Austen <[email protected]>
GENUKI trustee <[email protected]>
Oxfordshire FHS webmaster <[email protected]>
PUG chairman <[email protected]>
FFHS Communications Officer <[email protected]>
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