RE: "554 Mailbox Unavailable. Giving up on ...."

  • From: "Hite, Ronald L" <rhite@xxxxxxxxxxxx>
  • To: "[ExchangeList]" <exchangelist@xxxxxxxxxxxxx>
  • Date: Wed, 13 Mar 2002 13:51:35 -0600

Did you update the public DNS record with the other MX info?

-----Original Message-----
From: Ken Kwong [mailto:kenkwo@xxxxxxxxx]
Sent: Wednesday, March 13, 2002 1:49 PM
To: [ExchangeList]
Subject: [exchangelist] "554 Mailbox Unavailable. Giving up on ...." 

We are running Windows NT 4.0 OS in an Exchange Server 5.5 environment.  We 
have a mailbox with a SMTP address that has been set up with a different domain 
(site address).  We added the MX record in DNS and also,  selected:  Internet 
Mail Connector  > ROUTING TAB and added the domain name and checked "REROUTING 
INCOMING SMTP MAIL".  In the SENT TO field, we added the domain name and in the 
ROUTE TO field, we put INBOUND.  So, on the email side, we have the Exchange 
mailbox in place with the appropriate SMTP email address, the MX record has 
been added in DNS, and in the INTERNET MAIL CONNECTOR, that domain name has 
been added so it will reroute INBOUND. 

When mail is send from external to this mailbox, it responds back to the sender 
with the following error message: does not like recipient.  Remote host said: 554 mailbox 
unavailable.  Giving up on

( is the IP Address)


Does anyone know what could be causing this type of error message?  Is this a 
firewall issue?  I don't see anything on the mail side.


Kenneth Kwong


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