I have added a feature in the right side bar to register an email address with Blogtrottr in order to receive a notification email when a new blog post has been published on PDF-AKTUELL.
After submission of your email address you must subscribe to the first feed (https://pdf-aktuell.ch/pa/language/en/feed) on the Blogtrottr page. The second feed is only for the comments.
You will then receive a confirmation mail by Blogtrottr which you must confirm in order to activate the service.
At the end of each notification mail there is a link to stop this service.