Rein, although the client freezes after it connects to the server it is still able to transmit. I tried to send a local mail to you, and with the compression checked I get "Server Unknown" and with it unchecked I get "Could not find." That is the exact response that I received while using the 1.5.10 client. Let me know what you want me to try next. Very 73 de Glenn WB2LMV