FAQ

Mark Sapiro wrote:
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DAve wrote:
Brad Knowles wrote:
On 8/8/07, DAve wrote:

So in the idea of an announcement only list, we should be able to have
the list owner post a message to multiple topics, correct? I did not see
where cross posting a message to multiple topics within a single list
was possible. Do you know if it is?
I would think so, yes. But you should probably wait for an answer from
someone who knows better how that part of the code actually works, like
maybe Mark Sapiro or Tokio.
Doesn't look like that answer is coming, I must be treading new ground.
Is anyone interested in the answer if I setup a test install and try it?

Sometimes people are out of electronic contact for weeks at a time :)
Hey I wasn't complaining! I figured I would just go try it myself so I
did. It works exactly as you describe below which is what we want.

Now we just have to figure out how to manage the addresses and user
preferences for it looks like it could go 100k subscribers. Currently we
use ezmlm and we manage all subscriptions via a management interface and
SQL which syncs the subscriber list with the client's AS400. We will
check out the xmlrpc patch as well.

We are reading the FAQ on high volume lists and searching the archives now.

Thanks,

DAve
Topics are defined for a list.

Each member may subscribe to zero or more of the defined topics, and may
additionally choose to receive messages which don't match any topic. If
the member subscribes to zero topics, she receives all list messages. If
the member subscribes to one or more topics, she receives (one copy) of
all messages matching any of the subscribed topics, and if opted, those
messages which match no topic.

Each topic definition includes a regexp which is matched against the
Subject: header, the Keywords: header if any, and any initial body lines
that look like Subject: or Keywords: headers up to the first non-header
like body line or topics_bodylines_limit, whichever comes first.

As we understand it you can have topics, and subscribers will only
receive messages directed at the topics they subscribe to.

Plus messages which match no topic if they choose. But, since this is an
announce list, you should be able to guarantee that all messages will
match one or more topics.

This means a
subscriber could subscribe to [members], [stores], and [retailers], if
we send a message to [stores] they will receive it. If we send a message
to all topics, subscribers will receive only one message. This is what
we want.

I don't understand what you mean by "all topics".

However, if we send a message only to [stores] and to [members],
subscribers will receive two copies.

No. Those members subscribed to either [stores] or to [members] or to
both will each receive exactly one copy of the message.

This is not what we want. In order
to have a subscriber receive only one copy of the message, the message
must go to ALL topics, [stores], [members], [retailers], [malls],
[gas_stations], [gas_stations_with_inside_bathrooms],
[gas_stations_with_outside_bathrooms_in_north_dakota], etc. Not what we
want.

The above is not correct. Each list member will receive either zero or
one message depending on whether or not the message matches at least one
subscribed topic.

- --
Mark Sapiro <msapiro at value.net> The highway is for gamblers,
San Francisco Bay Area, California better use your sense - B. Dylan

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postedAug 7, '07 at 3:19p
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