How do I set a "reattached message" for reattached sessions?

[Raveen Ryan Sundram]

Hi,

I'm trying to set a "reattached message" to appear on the bottom of the screen 
for when users are detached and then reattach.

Example, from my login script:

exec screen -dr $name -X echo "Reattached session from previous $name"

but screen terminates instead.

Any ideas?
 
Regards,
Raveen Ryan Sundram