David, if you used a Sendmail server (possibly problematic, as it would
add an extra layer in your mail delivery, you could write a very simple
procmail recipe to do this. Probably the simplest solution would be to
send [EMAIL PROTECTED] to [EMAIL PROTECTED] and write in the first line
in the email "This was sent to [EMAIL PROTECTED]"

I'm not weighing the merits of your plan, just whether it could be done.

> -----Original Message-----
> From: David Hekimian [mailto:[EMAIL PROTECTED]
> Sent: Wednesday, December 03, 2003 5:11 AM
> To: Exchange Discussions
> Subject: Single Use E-Mail?
> 
> 
> I'd like to allow my users to create a single use e-mail 
> address to help
> reduce unwanted e-mail.
> 
> - User mailbox '[EMAIL PROTECTED]'
> 
> This user can create any new e-mail address by adding a suffix (with a
> special char '-' for example) such as '[EMAIL PROTECTED]'. All
> suffixes are by default allowed. There would need to be a 
> method that would
> allow the user to blacklist a specific suffix.
> 
> My idea would be to create an EventSink for Exch 2000/2003 that when a
> message is addressed to '[EMAIL PROTECTED]' it would parse 
> the LHS of the @
> and then do a lookup in a table to see if the blacklist 
> existed. If it did,
> then it would return a '550 Mailbox does not exist' error 
> code. If it does
> not exist, then the To: Field would be rewritten to strip out 
> the '-suffix'
> and deliver the mail to the intended recipient '[EMAIL PROTECTED]'
> 
> 
> Questions:
> 1. Does something already exist today that does this? An 
> event sink? 3rd
> Party App (MailMarshal, GFI MailEssentials)? Freeware on Linux, etc?
> 
> 2. I've already coded the basic functionality for the 
> database look and web
> interface to modify the blacklist but the Event Sink is 
> causing me some
> issues. Anyone have experience in Event Sink programming 
> willing to jump in
> an help with the development?
> 
> 3. Is this a crazy idea and I should just abandon it?
> 
> - David
> 
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