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Exchange 2007 Mail delivery issue, messages stuck in the queue at retry

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Exchange 2007 Mail delivery issue, messages stuck in th... - 31.Jan.2009 10:05:22 PM   
Vezgo206

 

Posts: 1
Joined: 31.Jan.2009
Status: offline
Exchange 2007 Mail delivery issue, messages stuck in the queue at retry
 
Windows server 2003 /Exchange 2007
1.       Front end servers XXX-exfe-02 (Original)- 10.0.3.48 – Client Access /Hub Transport
2.       Front end servers XXX-exfe-03 (New) - 10.0.3.47– Client Access /Hub Transport
3.       Front end servers XXX-exfe-03 (New) -10.0.3.48– Client Access /Hub Transport
 
Backend Cluster name Pormailer-US.daomain.com IP 10.0.0.54
1.       Backend Server XXX-exbe-01  IP - 10.0.0.55- Mail Box
2.       Backend Server XXX-exbe-02  IP - 10.0.0.56- Mail Box
 
Scenario:
The Hub Transport server XXX-exfe-02 IP 10.0.0.81 is a Desktop box so we purchased two 1U servers to replace this Desktop box and intend to Load balance the two new servers.
Internal DNS Alias for XXX-exfe-02 = Mail.domain.com which External resolves external OWA .
Installed Exchange 2007 on both servers as Client Access and Hub transport.
1.       XXX-exfe-03  IP 10.0.3.47
2.       XXX-exfe-04  IP 10.0.3.48
Later the night  of the install the new servers XXX -exfe-03 and XXX -exfe-04 started to receive email  in their queue which I never intended until the Load balance cluster was configured.
Now XXX exfe-03 has 640 messages in its queue, I resolved some error which were related to the Exchange certificates not  it the correct place. The second error I noticed was the in the Hub Transport property’s System Tab XXX exfe-03 and XXX exfe-04 had no Domain controllers listed and the same for the Global catalog servers field. I ran the command in the shell to add domain controllers for both servers and the fields became populated.  I am able to turn the two new servers XXX-exfe-03 and XXX-exfe-04 and the original server XXX-exfe-02  will send email fine.
Now XXX-exfe-03 errors from the Message Flow troubleshooting states the ‘Pointer’ PTR is not correct. Question do I need to add the PTR or MX to my ISP DNS? Or is this an internal DNS entry.
The message errors in the queue is 451 4.4.0 Primary target IP address responded with: "421.4.2.1 Unable to
connect."
Attempted failover to alternate host, but that did not succeed. Either there
are no
alternate hosts or delivery failed to all alternate hosts
Alias entry for internal DNS  Mail.pro.com ------>10.0.0.82xxx-exfe-02------>10.0.0.82------>NAT------>65.XX.192.97------>mail.domain.com------>ISPxxx-exfe-03------> ------>ISPxxx-exfe-04------> ------>ISP
 
ISP DNS Entries:
@             in      soa       ns.adhost.com. hostmaster.adhost.com
                in      ns         ns.adhost.com.
                in      ns         ns0.adhost.com.       
                in      mx 2    domain.com.inbound15.mxlogic.net.
                in      mx 4    domain.com.inbound15.mxlogicmx.net.
                in      mx 6    domain com.s7a1.psmtp.com.
                in      mx 8    domain.com.s7a2.psmtp.com.
                in      mx 10   domain.com.s7b1.psmtp.com.
                in      mx 12   domain.com.s7b2.psmtp.com.
                 in      mx 14   mail. domain.com.
                 in      mx 16   webmail. domain.com.
mail          in      a       XX.XX.192.97
webmail  in      mx 20   webmail.domain.com.

 
 
1.       Can I manually move these messages to the working Hub Transport Server XXX-exfe-02
2.       Do I need to add the PTR or MX to my ISP DNS? Or is this an internal DNS entry
3.       Do I need a new SPF record and reverse DNS record
4.       Do I need to create a new SMTP policy for each of the new servers XXX-exfe-03 and XXX-exfe-04
5.       How do I failover the messages to the alternate Hub Transport Server XXX-exfe-02
 
Thanks in advance any help will be great!
 
Roosevelt Hubbard
 

 
 
 
 
 
 
 
 
Post #: 1
RE: Exchange 2007 Mail delivery issue, messages stuck i... - 31.Jan.2009 11:06:14 PM   
Elan Shudnow

 

Posts: 897
Joined: 4.Jan.2007
From: Chicago, IL
Status: offline
All I'll say to this is you don't "always" need to have PTR and SPF records but they will cause delivery issues to certain domains; although not many.  I have created a detailed record on how you should set up DNS for Exchange below.

http://www.shudnow.net/2008/11/08/exchange-2007-mail-flow-dns-records-connectors-and-tls/

You can move a Queue database to another server.
http://technet.microsoft.com/en-us/library/bb124343.aspx

If you have Queue issues and want to force a Retry after resolving any Transport Issues, you can use the Retry-Queue command.  If you want to force re-categorization of your Queue due to changes such as Connector Modifications, you will want to use the -Resubmit $true switch with the Retry-Queue command.

_____________________________

Elan Shudnow
Exchange MVP
http://www.shudnow.net

(in reply to Vezgo206)
Post #: 2

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