OK, almost there !! Two routers, the first, a verify_only to pass the 
message through and the second to 'fail' it...

verify_router:
  driver = accept
  verify_only
  domains = +route_to_domains
  local_parts = ${lookup{$local_part} 
nwildlsearch{/usr/local/exim/valid.users}{found}{$local_part}}

bad_recipients:
  driver = redirect
  domains = +route_to_domains
  local_parts = ${lookup{$local_part} 
nwildlsearch{/usr/local/exim/valid.users}{found}{$local_part}}
  data = :fail: unknown user

but I'm getting an error in the log...

2007-06-01 07:51:00 [13735] 1Hu8Sx-0003ZW-GT == [EMAIL PROTECTED] 
R=bad_recipients defer (-17): error in redirect data: ":fail: unknown 
user" is not permitted

The docs seem to agree with you that this should work.  What am I 
missing??  I'm running 4.67

Thanks again for all of your help.  This has been very enlightening!!



Sent by:        [EMAIL PROTECTED]
To:     [email protected]
cc:      (bcc: Dan Mitton/YD/RWDOE)
Subject:        Re: [exim] Reject Specific users...
LSN: Not Relevant
User Filed as: Not a Record

On Friday 01 June 2007 01:12, [EMAIL PROTECTED] wrote:
> Ok, it seemed like that the 550 was the correct response.  How do I have
> Exim "accept" the message and generate a bounce??

To do that, you have to accept it through the ACLs (I assume that you're 
only 
*ever* going to do that if the sender is authenticated!), then make sure 
that 
routing fails. To do *that*, either add an extra condition to the routers 
that would otherwise accept the addresses you want to reject, or add an 
extra 
router that catches the bad addresses, like this:

bad_recipients:
  local_parts = foo : bar : /etc/exim/bad_recipients
  driver = redirect
  data = :fail:Bad recipient

or simply add :fail: records to an existing alias file. The best solution 
depends on exactly what you want to achieve, what class of addresses you 
want 
to block; when, how many, and why. Why does Exim accept mail for those 
addresses in the first place?

-- 
Magnus Holmgren        [EMAIL PROTECTED]
                       (No Cc of list mail needed, thanks)
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