> > This isn't about spam, this is about unknown users, which can't be
> > filtered until there is knowledge of whether or not the user exists,
> > which means it has to touch the imail server for user account reference.
> 
> IMail can't do it, but IMGate can.  With Sender Address Verification,
> IMGate
> does a temporary reject on delivery from an unknown sender.  For example
> if
> my server gets an email from [EMAIL PROTECTED] it checks with the MX for
> example.com to see if the bozo exists.  Then when the message is
> re-delivered IMGate will accept delivery if bozo is valid, and refuse
> delivery if it's bogus.
> 
> So if the sender doesn't exist- it ain't legit!

Gerry, wrong direction. This is on a non-existent recipient. The gateway is
receiving for all, then sending to Imail, Imail rejects and gateway tries to
send bounce.

John Tolmachoff
Engineer/Consultant/Owner
eServices For You



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