[clue-tech] postfix recipe needed - to match incoming mail against a list of valid users

[William]

That behavior is both native to and default for postfix.  It is no 
wonder that you won't find additional documentation on it.  In fact, I'm 
surprised that you are experiencing alternate behavior.  Normally, 
postfix checks the Envelope (not the Header) To: data against your list 
of valid users.  No match results in a bounce.  I'm not sure how you 
circumvented this behavior.  That is, unless you meant something else by 
your question.  :)

For *additional* hardening against dictionary attacks, take a look at my 
popAuth3 project:  http://popauth.kimballstuff.com/


Dave Price wrote:

> Google is coming up empty.
>
> Does anyone have a postfix 'recipe' that would check inbound mail 
> against a list of valid users, and drop everything not in the list 
> (dictionary attack prevention)?
>
> TIA  & Happy Fiday
>
> -- 
> aloha,
> dave
>
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