[Mailman-Users] Setting up redundant mailing lists in OSXSnowLeopard.

Mark Sapiro mark at msapiro.net
Mon Jan 4 18:48:26 CET 2010

JRC Groups wrote:
>On 1/1/10 8:46 AM, "Mark Sapiro" <mark at msapiro.net> wrote:
>> JRC Groups wrote:
>> I think an umbrella list is appropriate for your requirement. Most of
>> the issues with umbrella lists have to do with people who are members
>> of more than one subordinate list receiving multiple copies of posts,
>> but you won't have people who are members of both subordinates.
>This is indeed the case. All subscribers will either belong to one list or
>the other. Never both. One of the issues I noticed when reading the post has
>to do with replies from subscribers. Considering subscribers are either
>receiving mail from Sublist1 or Sublist2 but post are mailed to
>UmbrellaList1 what happens when a subscriber replies to a post ? Since he
>received it from (let's say) Sublist1 wouldn't the reply be sent back to the
>same list ? How can this be resolved  in setting up this system ?

See my reply to Geoff Shang's reply.

>>> Is there a way to set-up user preferences so that every user can have its
>>> subscription set to either receive or block attachments ? This would make
>>> things a lot easier and allow me to address this issue very easily.
>> This cannot be done in current Mailman except perhaps by overloading
>> some existing user option and either implementing a custom handler
>> (see the FAQ at <http://wiki.list.org/x/l4A9>) or modifying the
>> existing MimeDel (content filtering) handler to process it.
>Let's not go there. Already sounds way too complicated. May I suggest this
>for future releases as a feature request ? I think this would be very
>helpful and a feature all administrators would really benefit from.

The best place to submit feature requests is to the tracker at

>>> Can content filtering be set-up to block or allow certain specific types of
>>> files ? Considering the answer to be yes, would it be possible to set
>>> content filtering to allow images files but place a restriction on the size
>>> and/or resolution of the files sent as attachments ?
>> Content filtering is set per list (the sub-lists in your case). It
>> passes or filters MIME message parts based on MIME content type, and
>> also optionally on 'extension' of attached files. Content filtering
>> per se does not have a way to deal with the size of any attached
>> message parts or the resolution of any image/* parts, but there is a
>> maximum message size (for new lists in a default install, this
>> defaults to 40KB) that applies to all messages on a per list basis
>> that will result in all messages exceeding that size being held for
>> moderator approval.
>Same thing here. Would it be possible to add this as a feature request ?

See above.

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

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