Exchange server 2003 to 2010

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Junior Cluster

Dear sir,

I read many blogs and also read microsoft documents for transition from 2003 to 2010, so lets start with my current scenario

Exchange entp. 2003 running on windows 2003 entp sp2 as 2 node cluster

out side(internet) accessing by

mx record configured by local ISP

if we transition from 2003 to 2010

shall we have to contact our ISP for ms record ?

shall we have do any additional setting while transition for access exchange mail for out side( ?

if there is any setting for internet, please clarify

our plan to exchange 2010 with DAG

Thanks in advance


Michel de Rooij

Do you plan to run ex2003 and ex2010 mailboxes concurrently (co-existence)? If yes, you need to introduce a FQDN for accessing the legacy mailboxes.

Some info here:

Regarding the MX records: When you have configured Ex2010 properly, and everything routes internally correctly, just assign the external address to the Ex2010 configuration instead of the Ex2003 box. How this is done depends on your setup; do you have a reverse proxy, then you van make the switch locally and don't need the ISP at all (ISP points to your Rev.Proxy, eg ISA). The Ex2010 Hub can route messages to/from the Ex2003 environment.

Does that answer your question?
Michel de Rooij,
MCITP Ent.Msg 2007+2010| MCTS W2008, Ex2007+2010 Conf, OCS2007 Conf | MCSE+Msg2k3 | MCSE+Inet2k3 | Prince2 Fnd | ITIL
I blog on and tweet on
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