Why where you using an SMTP connector?
Default Exchange 2000 server does not require an SMTP connector to route emails. This is handled by the SMTP virtual server. Unless of course this was an upgraded 5.5 server or the SMTP connector is being used to connect to another site.
1. Test that SMTP is installed and configured.
If you do need to use SMTP connectors at least one connector must contain an address space of *, which specifies all external domains.
Please see link for more information on SMTP connectors
To start troubleshooting SMTP try this
telnet to port 25 and try to send emails using SMTP commands
From the server:
telnet
set local_echo
open
127.0.0.1 25
this should open communications with your exchange SMTP VS and display a simular message to
220 site.yourcompany.com Microsoft Exchange Internet Mail Connector version number of the IMC
helo site.yourcompany.com
mail from: person@yourcompany.com
rcpt to: persone1@yourcompany.com
data
subject: test
test
.
this should send a message to the rcpt: please see below for more detailed explination of the commands
Good Luck hope some of this information helps