Hi
I have an exchange 2010 SP3 organization running on a 2003 / 2008 R2 active directory.
Exch1 is in my default site and everything is running with mail flow as it should.
Then I have add an additional AD 2008 R2 site with an Exch2 2010 SP3 server.
After installation of the secondary exchange server I moved a mail box to it and could connect to it via an outlook client. All seemed fine as the address book and all were correct and up to date.
However when I send mail from the user on the secondary exchange to a user on the first exchange of visa versa it fails.
451 4.4.0 Primary target address responded with: “421 4.2.1 Unable to connect.” Attempted failover to alternate host, but that did not succeed. Either there are no alternate hosts, or delivery failed to alternate hosts.
As this is my first secondary site exchange server setup I might have missed something being that other than adding the server to the defaultIPsiteLink within Active Directory Sites and Services. I did not setup any link or connectors. Suspect that this is the reason for my failure but of course not sure.
Thanks