Giuseppe, Jeff mentioned "thread hijacking". in case you're not familiar with the term, you could look here ---- http://www.mutt.org/doc/manual/ ---- and search for "hijacking" or "in-reply-to".
basically, afaik, when you want to send e-mail to the *same* list, but on a *different* topic, you should - change the subject line (to something appropriate to your new subject), and - remove the "In-reply-to" header from your reply. for example, in replying to you, i changed the subject line (as you see), and removed this following in-reply-to header from the e-mail headers in my reply (my e-mail reader generated this header when i hit "reply" on your e-mail): > In-reply-to: Your message of "Wed, 29 Sep 2021 22:24:41 -0400." > <008401d7b5a2$53594e10$fa0bea30$@gmail.com> (probably more than you wanted to know; but ... :) cheers, Greg ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.