efaq: Unsubscribing from Emacs lists

 
 2.6 How do I unsubscribe from a mailing list?
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 If you are receiving a GNU mailing list named LIST, you should be able
 to unsubscribe from it by sending a request to the address
 <LIST-request@gnu.org>.  Mailing lists mails normally contain
 information in either the message header (‘List-Unsubscribe:’) or as a
 footer that tells you how to unsubscribe.