I am looking at an exchange 2003 configuration with 2 configured SMTP connectors. One is configured for TLS encryption, domains added to it are assigned a cost of 10. The other connector is configured with an address space entry of * and assigned a cost of 1.
I have seen that emails sent to a domain thats noted in the address space of the connector configured for TLS, do go out requiring TLS. I dont understand how this is working, since the lower cost connector should be selected first, which seems that all mail would flow via the connector that is not configured for TLS.
Is there something I am missing that would cause this configuration to work?