I ran into issues configuring Sendmail and messed up the
/etc/mail folder's files, so I deleted
/etc/mail entirely. How can I now start fresh in my journey of attempting to configure Sendmail by restoring the
/etc/mail folder with its default files?
Having experimented further, I used apt to remove all the sendmail packages and then did
apt install sendmail-cf sendmail-base sendmail-bin sendmail-doc
and I now have most (or all) of what I remember from /etc/mail. Of course, I still don't know how to get it doing what I want, but at least I can try things now.