Topics for Mailman

"Members of the mailing list can then subscribe only to particular topics of their choice, rather than to the list as a whole.

"This is enabled in the Topics section of the mailing list admin pages. You can also set how many lines of the body are scanned for matches. Set this to 0 to scan only the Subject and Keyword lines. Set the name of the topic (e.g., "Networks"), then create your regular expression. Regexps here are case-insensitive, so there's no need to worry about capitalization. The most straightforward option is just to set a single word, for example,"

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