Destination email system is unknown or invalid

[bkeahl]

I just put a 2003 SBS online and used the Exchange Migration Wizard to move the mailboxes from the old SBS to the new one.

I reconfigured outlook 2000 on a workstation to go to the new exchange server but whenever I try to send email I get "destination email system is unknown or invalid" bounce.

To make things stranger, if I use Outlook Web Access to send email it goes out! The server is also receiving email from outside.

Here's the "strange stuff" about this configuration:

Because the new system is SBS and the old is SBS I gave the new SBS a different domain name. However, I did tell it during setup that the email system was to use a different domain (ie, mydomain.com is the network domain but Exchange Server is setup to put mydomain.org on the emails - which it does).

The workstations are still logging on to the old domain server, so the new SBS/Exchange Server is "standing alone" on its domain. However, Outlook stations connect to it (I set the user/password the same in both domains). I see inbound emails so I know outlook has access to the exchange store.

So, any ideas on how to get the system to let an outlook user send email?

 

[Zelandakh]

That's an interesting way of doing things

You'd have been better off using the same domain rather than different, would have stopped you seeing these issues.

To resolve it, drop each machine out of the old domain, into the new domain, delete the Outlook profile and recreate.