"the post office closed some time ago"
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: 2025-04-18T15:38:17Z
POI has no name
POI types: amenity-post_box
#organicmaps ios

Gästehaus des Charlottenhofs (OSM data version: 2016-06-20T05:57:02Z) #mapsme

Parkbank bei einem Wegekreuz (OSM data version: 2016-07-15T17:38:02Z) #mapsme

The place has gone or never existed. This is an auto-generated note from MAPS.ME application: a user reports a POI that is visible on a map (which can be outdated), but cannot be found on the ground. User comments: "Diese Tankstelle ist seit knapp einem Jahr geschlossen" (OSM data version: 2016-07-15T17:38:02Z) #mapsme