Sending consecutive messages in same thread?

[Ulrich Scholz <Ulrich.Scholz@xxxxxxxxxxxxxxxxxxxx>]

Dear all,

maybe this is slightly off topic: How can I send consecutive messages that
belong to the same thread.  

For example I send a question to Jill.  But then, before she answers that
question, I figure out the answer myself.  Now I want to notify her - and
that email should belong to the same thread than my first email.  

How to do that? "mail" starts a new thread and there is no message to
"reply" to.

Thank you, 

Uli



-- 
Ulrich Scholz            

Personal Memory Group                   
European Media Laboratory GmbH