Offline Messages to Bounce : User not informed

I have set Offline Messages to Bounce, in attempt to disable the offline message capability. If someone is offline, our users should not be able to send them a message - and they should be informed of such.

Following that setitng change, i restarted wildfire to ensure the setting kicked in.

Then, from Spark, i sent an offline user a message and unfortunately still receive the confirmation “The user is offline and will receive the message on their next login.”

I have additionally confirmed this by trying to send a message to an offline google talk user who we do s2s with - it too informed me the message woudl be delivered when they get back online - which i do not believe google talk support.

Please help! Thanks.