Question : Exchange 2000 to 2007, 2000 mailboxes can no longer send email

It was working, but today after trying to configure a smart host in the send connector it stopped working.  Now the 1 mailbox on the 2007 box cannot send to the 2000 boxes.  None of the 2000 boxes can send to the Internet but they can send to the 2007 mailbox.

I have tried configuring an smtp connector on the 2000 as a bridgehead with the 2007 as the smarthost but that had no effect.   The mail tracking from 2000 shows mail going to the 2007 but it never seems to hit the Internet.  Any ideas?

Answer : Exchange 2000 to 2007, 2000 mailboxes can no longer send email

ok - sounds pretty straightforward - can you give me a little more info about what happens when you send an email from 2000 server to the internet? do you get a bounce message? if not take a look at the queue viewer on exchange 2007.

you should need the smtp connector on the 2000 server, everything should route to 2007.

I would try restarting the routing and smtp services on exchange 2000 and the transport service on exchange 2007.

also check the configuration of the SMTP virtual server on the Exchange 2000 server, make sure there is no smarthost configured (this has caught me out in the past!

Let me know how it goes, we'll get it worked out in the end!