Blocking Yahoo Messenger on Yahoo Mail

I have previously posted a blog on Web Instant Messengers  last year. And now, Yahoo have integrated their ever popular Yahoo Instant Messenger to Yahoo Mail, same feature as Google’s Google Talk in GMail which I am using for a long time.

As part of corporate policy, this is not allowed. To block this feature, you may create a Deny Rule on your firewall for the following web address:

httpcs.msg.yahoo.com

You may want to try it and post some comments.