[Mailman-Users] Reply-To-List Header
dap1 at bellsouth.net
Sat Jan 9 16:10:17 EST 2016
On 1/9/2016 1:36 PM, Mark Sapiro wrote:
> On 01/09/2016 06:14 AM, Dennis Putnam wrote:
>> On some mailman lists I receive messages in which Thunderbird displays a
>> "Reply to List" button. However, on my own lists that does not happen.
>> What header is TB relying on to get that and what setting do I need to
>> change my mailman for that to happen? TIA.
> Thunderbird and many other MUAs rely on the RFC 2369 List-Post: header
> for "reply to list". There are six RFC 2369 List-* headers; List-Id:,
> List-Unsubscribe:, List-Archive:, List-Post:, List-Help: and
> List-Subscribe:. Mailman's adding of these headers is controlled by the
> lists General Options include_rfc2369_headers and
> include_list_post_header settings.
> If include_rfc2369_headers is No, none of these headers will be added.
> If include_rfc2369_headers is Yes, List-Post: will be added only if
> include_list_post_header is Yes, List-Archive will be added only if the
> list is archiving and the other four will be added.
> So to ensure posts received from the list have a List-Post header, both
> include_rfc2369_headers and include_list_post_header must be Yes.
> Also note that if your "Avoid duplicate copies of messages?" setting on
> a list is Yes and you are directly addressed in a reply, the copy you
> receive doesn't come from the list and won't have any Mailman headers.
Thanks for the reply. Those options are and apparently always have been
on. But none of those headers show up. I wonder if an SMTP server
somewhere along the way is stripping them out for some reason.
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