Dynamic email address

[Raj Shanmugam]

Hello Group,
 
I am using "Send mail" wizard to create a task as a part of my workflow
template. I want the task to determine the Receipient address dynamically
from one of the object type I am using.  For e.g., the email receipient
address should look like "attribute1.attribute2 at mycompany.com".  If anyone
could point me in the right direction, it will be appreciated.  Thanks in
advance.
 
Roger