Cannot create email again after deleteing the user and email address

Cannot create email again after deleteing the user and email address

I am having the same problem with  info@winsoftorg.com, support@winsoftorg.com . I have removed his account and want to add it to his new address as an alias. It wont allow it because it says that  info@winsoftorg.com, support@winsoftorg.com  already exists. How long does it take to clear an account after the account has been closed.

Thanks
Faruk Hossain