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Route emails internally and to external smart host

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Route emails internally and to external smart host - 4.Jan.2012 11:53:31 AM

arsenal_mjh

Posts: 3
Joined: 4.Jan.2012
Status: offline

Hi

I am migrating users from Exchange 2003 to Exchange 2010, cross forest.

I have moved mailboxes and can access them on the 2010 side, I can also send and receive email externally.

I have set up the accepted domain as an internal relay and added a send connector pointing to the Exchange 2003 server. If I then email to someone on the same domain, within the Exchange 2003, 2010 forwards it to the Exchange 2003 server. This is perfect.

However, how do I get it to work the other way.

I've tried to create a new smtp connector for the domain, giving it a new smart host and picking that it is to relay to this Exchange. However, in the queue it simply says submitted to advanced queuing.

How do I get the Exchange 2003 server to do what I have managed to get the Exchange 2010 server to do.

Thanks in advance

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RE: Route emails internally and to external smart host - 5.Jan.2012 3:31:55 AM

Neko

Posts: 2077
Joined: 11.Nov.2008
From: The Netherlands
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So you're working with two AD domains, with two organizations, with one mail domain?

Not sure about 2010, but I know 2003 doesn't support that. The server is authoiritative for the domain, and thus it will assume that any and all mail for the domain will have to be handled locally. It will not forward mail for a domain it's authoritative for to another server.

That said... You can add a bogus address to all the mailboxes on the 2010 side, and add forwarders on the 2003 side I suppose. Loads of maintenance, but still a working solution I suppose. If anyone else wants to jump in that has more expirience on a 2010 migration done this way, I hereby invite them to jump in :)

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(in reply to arsenal_mjh)

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RE: Route emails internally and to external smart host - 5.Jan.2012 4:29:34 AM

arsenal_mjh

Posts: 3
Joined: 4.Jan.2012
Status: offline

Hi Neko

I've managed to set this up in 2010, so I know that works.
Your other suggestion is intriguing, I think I may investigate that further.

(in reply to Neko)

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RE: Route emails internally and to external smart host - 5.Jan.2012 6:13:56 AM

arsenal_mjh

Posts: 3
Joined: 4.Jan.2012
Status: offline

That worked a treat Neko.

That said, I would like to do it the other way instead (as adding contacts and forwarders increases the migration time).

So if anyone else has any idea how to set this up, please feel free to post.

(in reply to arsenal_mjh)

Post #: 4