I am using GFI MailEssentials on Exchange 2003 but I can't seem to configure the GFI or the Exchange so that e-mails to non-existent users gets deleted

I am using GFI MailEssentials 12 on Exchange 2003 but I can't seem to configure the GFI or the Exchange so that e-mails to non-existent users gets deleted automatically.  (in GFI, I have most of my filter settings set to "delete" except Bayesian Analysis and "DNS Blacklists", which were set to forward to a  bogus mail box for review for before final deletion.)   I can't seem to stop receiving mails from non-existing users!

thanks,
Mike
wang0162Asked:
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LeeDerbyshireCommented:
You can configure this in Exchange System Manager. Go to Global Settings/Message Delivery/Recipient Filtering, and the enable 'Filter Recipients that are not in the Directory'.  The look at the properties of you Default SMTP Virtual Server, click the Advanced button, then Edit, then enable 'Apply Recipient Filter'.  If you do this, it is also recommended to configure a tarpit time:

http://www.microsoft.com/technet/prodtechnol/exchange/Analyzer/f8a08dde-6523-46ab-9e77-7ae3864c22cc.mspx?mfr=true
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wang0162Author Commented:
I am almost there! Please excuse my inexperience in this.   How do I get to the ". . .look at the properties of you Default SMTP Virtual Server" part?
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wang0162Author Commented:
found it.  Let me try and see.
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wang0162Author Commented:
What do you recommend for tarptime?  what do you set yours to be (if applicable)
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LeeDerbyshireCommented:
I use 5 seconds.  It's just something to stop a spamming server trying lots of random addresses (e.g. aaa@domain.com, aab@domain.com, aac@domain.com, etc.) each second, in order to discover the valid addresses.  Now they are only be able to try one address every five seconds, instead.
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