Hallo Jens,
bin eben die protokolle durchgegangen: aufgefallen ist mir:
SERVER (WIN 22)
2026-06-17 11:29:04,430 WARN [com.jdimension.jlawyer.services.BeaService] (default task-8) HTTP 401 on POST /api/v1/postboxes/DE.BRAK.x0xaxa88-f5xx-43xx1-8xxc-e86fxx6df6f0.b010/folders/422190/messages/search – re-authenticating and retrying
2026-06-17 11:29:06,449 INFO [com.jdimension.jlawyer.services.BeaSessionRegistry] (default task-8) beA session registered for principal: VORNAME NAME
CLIENT (MAC)
Suppressed: org.jboss.ejb.client.RequestSendFailedException: Error in connecting to Destination @http-remoting://192.168.1xx.2xx:8080 : Please check if the client and server are configured to use the same protocol and ports.
so richtig schlau werde ich daraus noch nicht.