I do not remember where, but apparently CDOSYS is better than CDONT.
You can also use CDOSYS (Collaborative Data Objects).
You can find detail code example at http://www.sqlservercentral.com/Forums/Topic527864-110-1.aspx
One point worth mentioning: this does NOT require that Outlook be installed and running on the SQL Server host. And you do NOT have to configure a MAIL account in SQL Server either.
Regards