@ Yomi Oloko
I would need to look in to your account to further troubleshoot your concern. Please reply to this post and provide your Windows Live Hotmail e-mail address.
In the meantime, I suggest that you check out a Solution post created by MSFT Roopa S “Error when you try to send an e-mail: This account is currently blocked from sending messages”. The Solution post talks about the error message you received.
http://windowslivehelp.com/solutions/sendlimits/archive/2009/01/28/This-account-is-currently-blocked-from-sending-messages.aspx
I’ve also moved your post to the Sending Limits forum where similar concerns are being discussed.