Re: Exchange 2003 mail for unexisting receipients queued

From: GerogeS (jax_at_nospam_evosoft.dk)
Date: 03/09/04 

Date: Tue, 9 Mar 2004 14:44:35 +0100

I see your point but what I need is the Exchange server to DROP all the e-mails for non existing users.
For example I have user1 , user2 .... userx
If somebody send an e-mail to Xuserx I want the mail to be dropped and an NDR to be generated.
Instead of this the exchange just receives the mail for the Xuserx and put it in queue until the mail expires.
The main problem is that I DO NOT HAVE an Xuserx but my exchange still receives the mail. 

-- 
George Sas
"Mark Arnold [MVP]" <mark@mvps.org> wrote in message news:97fd01c405d2$2242a300$a401280a@phx.gbl...
  Mails for smtp addresses that don't have a match in AD 
  should be delivered to whatever account has been assigned 
  the postmaster@domain.com address. They shouldn't be left 
  hanging in the ether. You probably need to add a 
  postmaster@domain.com for each domain to your central 
  undeliverable account.
  >-----Original Message-----
  >Hello.
  >
  >We are running Exchange 2000 / 2003 on a network with 
  800-1000 users.
  >We are receiving e-mails for 10-15 domains.
  >Some of the users receive email for 2 or 3 of this 
  domains , some of them
  >have one , some of them for all.
  >All the incoming E-mails are managed by a smtp server on 
  the DMZ and
  >forwarded to one of our Exchange servers that will 
  distribute them
  >internally.
  >For outgoing mail we use one of the exchange servers 
  that will send out the
  >e-mails directly.
  >All our domains have one MX record that is the SMTP 
  server on the DMZ.
  >Now , the SMTP server accepts all e-mails for all the 
  domains. Once arrived
  >on the Exchange servers the mails with the existing 
  recipients are delivered
  >to the respective mailboxes.
  >The e-mails for non existen recipients are just queued 
  on the exchange
  >server and then when the delivery time expires they are 
  just dropped.
  >How can I get rid of this queuing process as the e-mail 
  addresses are not
  >existent actually.
  >For example let's say we receive mails for : abcd.com 
  and xyz.com
  >I have an user that has only one mail address : 
  user1@abcd.com
  >If an E-mail is sent to user1@abcd.com the mail is 
  delivered fine but if the
  >mail is sent to user1@xyz.com then the e-mail is just 
  queued .... why ? Why
  >does the Exchange not generate a NDR right away and drop 
  the message ?
  >I have enabled "Recipient Filtering" and filtered the 
  reciepients that are
  >not on Active Directory on our Exchange 2003 server (the 
  one that is
  >distributing the mail) but the mails are still queued !!
  >
  >Any ideea how to solve the problem or where is the 
  configuration mistake ??
  >
  >
  >.
  >

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