I have an SBS 2011 (exchange 2010) server and try to route domain email outside the domain.
Basically sending emails from firstname.lastname@example.org to an external user (outside the domain) to email@example.com. I setup a send connector for the domain to route all emails via a smarthost to the internet. Emails still fail with an undeliverable message user not found.
"The e-mail address you entered couldn't be found. Please check the recipient's e-mail address and try to resend the message>"
Any ideas what is missing> Cheers