If you are experiencing a problem because you are connecting through a firewall or proxy server, you will need to configure your firewall or proxy server. The following information should assist with your configuration:
Basic Connection:
Protocol: TCP or HTTP
Servers:
Basic Connection:
Protocol: TCP or HTTP
Servers:
- scs.msg.yahoo.com
- scsa.msg.yahoo.com
- scsb.msg.yahoo.com
- scsc.msg.yahoo.com
Port: 20,23,25,80,119,5050,8001,8002
Webcam Connection:
Protocol: TCP
Server: webcam.yahoo.com
Port: 5100
File Transfer Connection:
Protocol: HTTP
Server: filetransfer.msg.yahoo.com
Port: 80
File Sharing Connection:
Protocol: HTTP
Port: 80
Voice Chat Connection:
Protocol: UDP or TCP
Servers:
- v1.vc.scd.yahoo.com
- v2.vc.scd.yahoo.com
- v3.vc.scd.yahoo.com
- v4.vc.scd.yahoo.com
- v5.vc.scd.yahoo.com
- v6.vc.scd.yahoo.com
- v7.vc.scd.yahoo.com
- v8.vc.scd.yahoo.com
- v9.vc.scd.yahoo.com
- v10.vc.scd.yahoo.com
- v11.vc.scd.yahoo.com
- v13.vc.sc5.yahoo.com
- vc1.vip.scd.yahoo.com
Ports: 5000-5010
Original Posting By: Yahoo
Copy From:
http://help.yahoo.com/l/in/yahoo/messenger/messenger8/messenger/messenger-02.html