On 02/01/2019 01:14 AM, R. Diez via Mailman-Users wrote:
Of course there is the concept of 'Topic' in a mailing list. Mailman, the web interface, or whatever, does know how to group topics together. That is an obvious feature, because people tend to work/participate in threads.
I believe that what Mailman (2) considers to be a "topic" is considerably different than what you might consider to be a "topic" or "subject" or "thread".
My understanding is that Mailman considers a message to be part of a "topic" if the message has one or more key words defined for the topic. I.e. any message that has SMTP could be one topic, or DNS be another, or Python a third. This is decidedly NOT the "subject" or "thread" meaning of the word "topic" that I think you are using.
What makes this more interesting ~> problematic is that I think Mailman doesn't actually scan the message body for the topic(s) / keyword(s). Instead, I believe it requires the topic(s) / keyword(s) to be listed in the Keywords: header. - I know that I've used procmail to scan (copies of) messages and add the proper topic(s) / keyword(s) to the Keywords: header so that Mailman would see them and use it's topic filter properly. - This was a LONG time ago and I have forgotten almost all of the context. This may no longer be a requirement for current versions of Mailman.
Suffice it to say that Mailman's "Topic" concept is different than concept that you and I have for "topic" / "subject" / "thread".
-- Grant. . . . unix || die
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