There is insufficient information to decide whether this is a legitimate email.

The sender appears to be the legitimate sender “mein-paketservice.de”.

However, this could still be a fraudulent message, as we cannot ascertain whether the sender has been forged. Hence, it is dangerous to click on the link (it is not clear from the image where the link leads to).

Further information on how to verify the authenticity of messages can be found here: 
https://secuso.aifb.kit.edu/betr-nachrichten-flyer2