Follow the instructions here: http://lucene.apache.org/solr/community.html#mailing-lists-irc. You must use the _exact_ same e-mail as you used to subscribe.
If the initial try doesn't work and following the suggestions at the "problems" link doesn't work for you, let us know. But note you need to show us the _entire_ return header to allow anyone to diagnose the problem. Best, Erick > On Jun 20, 2020, at 3:22 AM, Shashikant Vaishnav > <shashikantvaish...@gmail.com> wrote: > > Unsubscribe please