Observe: In some cases, whenever you duplicate the certificate and critical in the Cloudflare dashboard and paste it to the applicable files about the server, blank lines are inserted. Nginx will treat such certificates and keys as invalid, so be certain there are no blank lines in the information. https://mailwizz-installation89909.prublogger.com/26307343/linux-postfix-mail-server-setup-can-be-fun-for-anyone