Hello and thanks again, unfortunately I am still not able to get it working. Firewall shouldn't be a problem, I have checked that. nslookup for openchange.x.x gives me the following output (of course the x is my domain): Server: UnKnown Address: 192.168.2.205
Name: openchange.wat.intra Address: 192.168.2.205 That seems to be quite normal. Any ideas are very much appreciated. Kind regards, Christoph Schröder-- users@sogo.nu https://inverse.ca/sogo/lists