Mailing List not showing messages

David Woodhouse dwmw2 at
Sun Jan 29 03:26:06 EST 2012

On Sun, 2012-01-29 at 08:00 +0000, John Rose wrote:
> My messages to the mailing list have not been getting to it for the last
> few days. I have not received any 'bounce' messages. Does anyone know
> why this might be?

Looking at the moderation queue, the latest trapped message from you is
Jan 22nd, with no subject. It was trapped for manual moderation because
it was HTML, not plain text as is required by the list.

You should have got an automatic response indicating that it was
trapped, with the rather unhelpful reason "Message has a suspicious
header". My logs suggest that it was sent, and accepted by Google's mail
servers — so if you didn't get it, that would be an issue on the Google
side. Here's my logs, showing the incoming message and the immediate

2012-01-22 06:46:48 +0000 1RorCQ-00048J-VT <= john.aaron.rose at [] P=esmtps X=TLSv1:RC4-SHA:128 S=19224 id=CACns58VEsrgqzbZR6DC93kuwi38eWZ-fqkJ=G0g2C2LoMQ=VpQ at
2012-01-22 06:46:48 +0000 1RorCQ-00048J-VT => get_iplayer <get_iplayer at> R=mailman_here_router T=mailman_transport
2012-01-22 06:46:48 +0000 1RorCQ-00048J-VT Completed
2012-01-22 06:46:51 +0000 1RorCV-00048X-B0 <= get_iplayer-bounces at H=localhost ( [::1] P=esmtp S=1311 id=mailman.1584.1327214809.14259.get_iplayer at
2012-01-22 06:46:52 +0000 1RorCV-00048X-B0 => john.aaron.rose at R=lookuphost T=verp_smtp [] X=TLSv1:RC4-SHA:128 C="250 2.0.0 OK 1327214812 t9si1404633icu.13"
2012-01-22 06:46:52 +0000 1RorCV-00048X-B0 Completed

If you didn't get that response, then the above logs should have all the
information that Google would need to trace it and work out why they
lost it.

The last *accepted* message from you was on Tuesday, which I see in my inbox.

The logs on the primary mail host don't seem to show any other messages
from you reaching it between then and now.

Can you give more details of the messages that seem to have been lost?

> I have noticed that the mailing list website states that certain
> messages have had their viewing suppressed by the Project Administrator.
> Does anyone know why this happens?

There are some filters which help to improve the signal:noise ratio.
Certain messages are trapped for moderation by the list admins. These
include all HTML, and anything with suspicious threading headers — for
example being marked as a reply when it doesn't have 'Re:' in the
subject, or vice versa.

Theoretically, the list admins occasionally look through and approve (or
mostly reject) the messages with a more coherent explanation and often a
reference to

> I have also noticed that the count of messages for a day is often not
> the same as the number of messages displayed, even when I have changed
> the view to 100 messages. Also, clicking the 'Next Messages' button just
> displays the same messages again.

You mean in the archives? Can you be specific about where you're

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