Wrong password message while trying to login to email.

I am unable to receive emails. The error dialog box shows that I have a wrong password. In other message also shows me advice for user name and password–I have submitted my password XXXXX but it is not responding at present.
Voluntary details:
Computer OS: Windows 7
Browser: IE
Already Tried:
I had gone to email accounts and retyped password. It is possible that I may have altered it from home earlier.
If it is the case I also then might have submitted the new password.
That even not worked.
