Nope... not under 2k3. The only option is for the user to set it up...
unless you have admin rights, then you can change the password and go into the account (under OWA) to set it up.
NOTE: This is NOT a solution! Just a workaround if something absolutely needs to be done in extreme situations.
cckens
"Not always my best shot, but I hit the target now and then"
-me