Hi > > Does Exchange 2000 still accept mail for non-existent users, as it > > does for 5.5? > > Unless there's a feature/setting I'm missing, yes it does.
No. But it is no predefined feature. You need to do this, as you do most in unix/linux: You need to define an custom event sink. You can do that in any wscript supported scripting language for exchange 2000. That way you can force exchange to reject unknown recipients. There are even suggestions how to do that (even more complicated) on exchange 5.5 using CDO objects... And a last remark: If you implement this with an proxy server in front of exchange, please consider quering the active directory for recipient verification and not some locally cached list... Active directory is one of the most optimized elements of windows servers, as any information is stored there! Regards, Steffen
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