Since 21-Jul-2012 the DXMAPS.COM DX-Cluster is running on a new server. You can connect to it using Telnet to DXMAPS.COM port 7300 , however it's mainly intended to support DXMAPS database, real-time propagation maps, propagation warnings by E-Mail and sending VHF&up formatted DX-Spots.
Please notice that connecting using Telnet to DXMAPS.COM DX-cluster so far is not compatible neither with sending DX-Spots using the WEB-Interface nor with VQSpot.