The list help/unsubscribe/post/etc. details are, as is not uncommon, in the message header:
List-Help: <mailto:solr-user-h...@lucene.apache.org> List-Unsubscribe: <mailto:solr-user-unsubscr...@lucene.apache.org> List-Post: <mailto:solr-user@lucene.apache.org> of all messages posted to the list. ------------ Original Message ------------ > Date: Monday, October 16, 2017 09:16:08 -0400 > From: Gus Heck <gus.h...@gmail.com> > To: solr-user@lucene.apache.org > Subject: Re: HOW DO I UNSUBSCRIBE FROM GROUP? > > While this has been the traditional response, and it's accurate and > helpful, the user that complained about no unsubscribe link has a > point. This is the normal expectation in this day and age. Maybe > Apache should consider appending a "You are receiving this because > you are subscribed to (list) click here to unsubscribe" line, but I > know that if I hadn't been dealing with various apache mailing > lists on and off for 15 years and I found that I was getting emails > with no unsubscribe links in undesired quantities, the spam bucket > would be my answer (probably never send the email asking for how to > unsubscribe). That's certainly the policy I use for any marketing > type mails (no unsubscribe == spam bucket)... A simple unsubscribe > tagline could help us not get tagged as spam, and avoid this type > of email (which has been a regular occurrence for 15 years) > > -Gus > > Hi, >> >> If you wish the emails to "stop", kindly "UNSUBSCRIBE" by >> following the instructions on the >> http://lucene.apache.org/solr/community.html. Hope this >> helps. >> >> ------------ End Original Message ------------