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How do I modify SMTP Relay in Active Directory Site

Posted on 2012-09-19
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I have a mixed exchange 2003 exchange 2010 environment.

I had my original exchange 2010 server die unexpectedly.  Ever since then none of my other 2010 exchange servers can send e-mail to my exchange 2003 server.

When I bring up the queue viewer I am seeing a next hop domain that contains my original 2010 server and all the messages are stuck within it.

My hunch is the other 2010 exchange servers where relaying through the original exchange 2010 server to get to the 2003 recipients however now that my original 2010 server is gone none of them can connect to the exchange 2003 organization.

How can I either create a new SMTP relay to my exchange 2003 organization or can I modify the existing misv-2008dc-misapp6 relay connector in some way so that another 2010 server can be used to relay to the 2003 organization?

The exact error message I am getting shows

Delivery Type: SMTP Relay in Active Directory Site:
Status: Retry
Last Error: 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.
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Question by:Douglas-Brouhard
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LVL 52

Assisted Solution

by:Manpreet SIngh Khatra
Manpreet SIngh Khatra earned 2000 total points
ID: 38413611
Ever since then none of my other 2010 exchange servers can send e-mail to my exchange 2003 server - Did you delete the Old RGC and create a new one for the new E2k3 and E2k10 servers ?

- Rancy
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Author Comment

by:Douglas-Brouhard
ID: 38413617
No, how do I delete the old RoutingGroupConnector and create a new one?
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Assisted Solution

by:Manpreet SIngh Khatra
Manpreet SIngh Khatra earned 2000 total points
ID: 38413632
First run the command to check the RGC's

Get-RoutingGroupConnector

- Rancy
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Author Comment

by:Douglas-Brouhard
ID: 38413649
OK.  It is the MISMAIL / MISV-2008DC server that died on me.  Mail2010 is still alive and well.  I was able to create a routing group for mail2010 now I'm trying to remove the first 2 routing groups.

[PS] C:\Users\misadmin\Desktop>get-RoutingGroupConnector

Name                      SourceRoutingGroup                             TargetRoutingGroup
----                      ------------------                             ------------------
MISV-2008DC-MISAPP6       Exchange Routing Group (DWBGZMFD01QNBJR)       First Routing Group
MISMAIL                   First Routing Group                            Exchange Routing Group (DWBGZMFD01QNBJR)
Mail2010                  First Routing Group                            Exchange Routing Group (DWBGZMFD01QNBJR)
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Author Comment

by:Douglas-Brouhard
ID: 38413659
OK, I got one of them out finally...  How do I create one now?

[PS] C:\Users\misadmin\Desktop>Remove-RoutingGroupConnector -Identity "Exchange Administrative Group (FYDIBOHF23SPDLT)\E
xchange Routing Group (DWBGZMFD01QNBJR)\misv-2008dc-misapp6"

Confirm
Are you sure you want to perform this action?
Removing routing group connector "Exchange Administrative Group (FYDIBOHF23SPDLT)\Exchange Routing Group
(DWBGZMFD01QNBJR)\misv-2008dc-misapp6".
[Y] Yes  [A] Yes to All  [N] No  [L] No to All  [?] Help (default is "Y"): a
[PS] C:\Users\misadmin\Desktop>get-RoutingGroupConnector

Name                      SourceRoutingGroup                             TargetRoutingGroup
----                      ------------------                             ------------------
MISMAIL                   First Routing Group                            Exchange Routing Group (DWBGZMFD01QNBJR)
Mail2010                  First Routing Group                            Exchange Routing Group (DWBGZMFD01QNBJR)
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LVL 52

Accepted Solution

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Manpreet SIngh Khatra earned 2000 total points
ID: 38413678
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Author Comment

by:Douglas-Brouhard
ID: 38413723
Rancy, you're my new hero.  That worked.  I don't know why I was suffering from such a mental block that I was trying to modify instead of delete recreate...

Any way, thank you...
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Expert Comment

by:Manpreet SIngh Khatra
ID: 38413748
Douglas - Your always welcome Sir :)

- Rancy
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