Sorry for lamer question: I have installed letsencrypt on debian jessie+apache with this guide and it works quite fine: https://www.howtoforge.com/tutorial...ovecot-ispconfig-3-1/2/#-install-lets-encrypt it does not use backports now, I am installing with nginx https://www.howtoforge.com/tutorial/perfect-server-debian-jessie-nginx-bind-dovecot-ispconfig-3.1/2/ and it does use backports Should I use backports or one was superseded by the other? And why does it use backports and the other one doesn't? b/c this is nginx? many thnx