Hello,
Just to alert you that the link of submission of the main page in https://opensourcemasterclass.org
is submitting the e-mail address to the link https://lists.opendev.org/cgi-bin/mailman/subscribe/floss-mooc
where the user is greeted with the message "Page not found" and
is given no clue on where to proceed to subscribe to the mailing
list.
It should, at least, send the user to this page: https://lists.opendev.org/mailman3/lists/floss-mooc.lists.opendev.org/
.
Best regards,