Windows 7: Yahoo mail automatically goes to us.mg4.mail.yahoo.com

A couple of days ago i noticed that when i log into yahoo.com and enter my username and password the URL automatically goes to us.mg4.mail.yahoo.com. I had entered the proxy address a few times and have read on the web that this is server address. Can someone please let me know if this is normal or should i be concerned because i didn't change any of my yahoo settings. Thanks very much in advance.

Also noticed that when i click the back tab it takes me back to my inbox. This should not happen. Something weird must be going on. Please help.

Mine goes to mg205. I never used any proxies so it looks like a normal Yahoo thing.

I would have thought that this would have been normal for the entire time you are using Yahoo Mail. That address is likely one of their many clustered servers, in the US region, since that's where you are connecting from.

Ok. Thanks because i thought it may have been something that was done by someone other than Yahoo. I have used the proxy address: 98.139.144.130 so it may have just switched over automatically regarding my mail.