SBS 2003 to EX2007 Issue

D_IT · Joined: 22 Feb 2008 Posts: 1

We had a Small Business Server 2003 (old domain-didn't migrate the AD
structure) box running Exchange 2003 SP2. We exmerged the user mailboxes and
imported them into an Exchange 2007 SP1 box (on a WS 2003 R2 SP2 x64) and a
NEW domain (new org storage group, new AD etc).

Now, users can't reply to old email from internal addresses because it says
the old addresses are not valid (like /O=FIRST ORGANIZATION/OU=FIRST
ADMINISTRATIVE GROUP/CN=RECIPIENTS/CN=OLDUSERNAME).

Is their anything I can do? Maybe third party software to correct the problem?

Thanks!

Archived from group: microsoft>public>exchange>setup

Mark Arnold [MVP] · Joined: 05 Aug 2007 Posts: 1126

On Thu, 21 Feb 2008 15:59:00 -0800, D_IT
wrote:

>We had a Small Business Server 2003 (old domain-didn't migrate the AD
>structure) box running Exchange 2003 SP2. We exmerged the user mailboxes and
>imported them into an Exchange 2007 SP1 box (on a WS 2003 R2 SP2 x64) and a
>NEW domain (new org storage group, new AD etc).
>
>Now, users can't reply to old email from internal addresses because it says
>the old addresses are not valid (like /O=FIRST ORGANIZATION/OU=FIRST
>ADMINISTRATIVE GROUP/CN=RECIPIENTS/CN=OLDUSERNAME).
>
>Is their anything I can do? Maybe third party software to correct the problem?
>
>Thanks!

This is because the LegacyExchangeDN attribute isn't the same in the
new forest. See:
http://www.google.com/search?num=20&hl=en&rlz=1G1GGLQ_ENUS256&q=legacyexchangedn
to understand and to change the details back.

Mark Arnold [MVP] · Joined: 05 Aug 2007 Posts: 1126

LegacyExchangeDN is the issue, it doesn't matter what version you've
moved from or to.

Mark Arnold [MVP] · Joined: 05 Aug 2007 Posts: 1126

Replace Dude, replace.

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