"Does not exist anymore (https://www.dhl.de/de/privatkunden/dhl-standorte-finden.html)"
The place has gone or never existed. A user of Organic Maps application has reported that the POI was visible on the map (see snapshot date below), but was not found on the ground.
OSM snapshot date: 2022-11-19T09:11:52Z
POI name: Postfiliale Richard-Lehmann-Straße
POI types: wheelchair-yes amenity-post_office
 #organicmaps