I am trying to setup a connector to use any simple public smtp server to send out emails from Exchange 2010. But always, using OWA, the message get stuck in queue with that error. I found some public smtp servers and I nsLookup their host names and their IPs and use that info for the connector, next I restart the Exchange services, then I try to send a mail using the exchange account to my personal gmail but it does not work.
I just need a simple, simple smtp server connector setting to get this done. Only for outbound.
By the way, are there no default exchange smtp servers?