Hello Danhiel
Thanks for the reply. This was also my first thought. But it seems, they were sent from a recognized SBB email address. They redirect me also to the right Swiss Pass account, where I have to validate my personal data, and re-upload a new photo, which needs to be verified.
I didn’t get a deny after validating and uploading a photo, only a new reminder to verify my personal data, to allow SBB to re-emit my SwissPass. Pretty strange.