Exchange 2010 transition from 2007

I have Exchange 2007 and 2010 running in mixed mode. I have a number of send connectors being used by 2007.  With 2010 installed can I just add the 2010 HUB servers as additional source servers to these send connectors along with the 2007 HUB, or do I need to create new Send connectors for 2010?
WildgenAsked:
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Antonio VargasMicrosoft Senior Cloud ConsultantCommented:
Do you have a client access array configured?

are you load balancing both 443 and 25 ports?

if you have load balancing rules on kemp created to load balance port 25 then yes you could.

the client access array actually doesnt have nothing to do with load balancing hub transport servers but i was just checking how do you have it configured.
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Antonio VargasMicrosoft Senior Cloud ConsultantCommented:
After installing the 2010 you will eventually end up uninstalling the 2007 servers, right?

I dont think you will be able to add the exchange 2010 servers to the send connector created in 2007. But try and open the send connector on the 2010 EMC and see if the 2010 HUB server is available.

you should get only the 2010 servers on the send connector forcing all mail to go trough them and not 2007 as 2007 is ggoing to be decomissioned.

be also sure that 2007 servers have sp3
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WildgenAuthor Commented:
Sounds like your talking about the Receive Connector.  The Send connectors are listed when using 2010 EMC and the Source servers on a Send connector can contain the 2007 server and the 2010 servers. When we remove the Source server for 2007 all the outbound email will go through these send connectors. We don't use an MS Edge server and send outbound email through our IronMail gateway.   Each of the 2010 Hub servers does have its own Receive connector for relay.
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Antonio VargasMicrosoft Senior Cloud ConsultantCommented:
No. I was talking about the send connector, that are organization wide. And you are right. the send connector can have as source servers 2007 and 2010 servers. If you want to force the mail (and you should) to go out through the 2010 server you just need to remove the 2007 servers from that connector, which i assume that has the ironmail appliance as smarthost.
also you need to configure the ironmail appliance to deliver the e-mail to the 2010 server and make sure that you have a receive connector on the 2010 capable of accepting e-mail from the appliance.
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WildgenAuthor Commented:
We will add the new 2010 servers to the ironmail relay and then add them to the send connector. Then will remove the 2007 servers from the Send Connector. The inbound from the Ironmail applicance will be pointed at the vip for the LoadBalancer in front of our 2 EX2010 serers. Does that sound correct?
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Antonio VargasMicrosoft Senior Cloud ConsultantCommented:
yes it does. so you need to allow the ironmail appliance to relay on both 2010 receive connectors. and when ironmail allows the 2010 to relay you need also ti change the servers on the receive connector to the 2010 servers and remove the 2007 servers. assuming of course that the ironmail will also point to the VIP of the 2010 HUB servers.

that is correct.. just dont forget to allow ironmail ip on both 2010 receive connectors.
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WildgenAuthor Commented:
We have added the two Exchange Hub servers to the Iron Mail relay and will add the Exchange Hub servers to the Send connectors and remove the old 2007 hub.  We are planning to use round robin DNS for the inbound from the Iron Mail to the 2010 hub servers.  The Receive connectors on the hub servers, Client and Default accept all IP's by default so there should be no change needed for these.
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Antonio VargasMicrosoft Senior Cloud ConsultantCommented:
The only change that you need, on the default receive connector, is to allow anonymous authentication if the ironmail relays the e-mail without authenticating. which should be the case. If you dont want to allow anonymous authentication to a receive connector that accepts all IP's just create a new one, and bind that receive connector to the ironmail IP only. Do it on both HUB servers.
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WildgenAuthor Commented:
We have pointed the IronMail server to send the inbound SMTP traffic to one of the new 2010 HUB servers. Since they worked for 2007 they work for 2010.  There is no anonymous authentication setting for the receive connectors. My only issue was that I wanted to use Round Robin DNS to send inbound to the two 2010 servers I hive but IronMail would only accept an IP to direct the inbound.  It seems to be working but only pointing to one of the servers directly.
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Antonio VargasMicrosoft Senior Cloud ConsultantCommented:
you need to NLB both HUB servers to have one NLB IP load balancing the SMTP traffic internally. you can also NLB cas servers if they are colocated.
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WildgenAuthor Commented:
We are using a KEMP to LB the Exchagne servers.  Can we point the Ironmail at the VIP to send inbound through the LB?
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WildgenAuthor Commented:
We cannot use the KEMP to LB port 25.  The LB will not pass through the source server IP to the HUB so it cannot verify the source.  We are pointing inbound port 25 at one of the HUB servers.
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WildgenAuthor Commented:
Thanks for the discussion and clarification.
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