How to refresh mailbox policy?

I have a MS Exchange 2003 server SP2 running. If I change user_a's mailbox size setting, how can I make sure user_a uses this setting immediately? What minimum steps (on server and workstation) are required?
Thanks a lot.
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barrymulhollandConnect With a Mentor Commented:
Restart the information store, be warned, this will kick out all users
richtreeAuthor Commented:
Any other less disruptive method?
SembeeConnect With a Mentor Commented:
Exchange settings are cached, and the cache is only flushed at intervals - which cannot be changed. Microsoft claim the interval is 15 minutes, but in reality it can take 2 hours before some changes are seen.
Resetting the information store is the only way which forces Exchange to read everything fresh and repopulate its cache.

richtreeAuthor Commented:
Thank you very much for the affirmative information.
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