I installed a fresh Exchange 2013 and am able to send/receive internally. When I do a test email to outside (e.g. Yahoo), the email may appear to go through as it is no longer in the draft folder. However, I check my yahoo mail and nothing came through even after 24 hours. Not sure what the issue is becauseI created a send connector, SMTP with the *. I tried several different settings in the DNS Lookup under Server parameter in EAC and nothing work.
I am able to telnet to exchange port 25 and getting responses. I ran the Exchange Analyzer (testconnectivity) with both inbound and outbound and both came back successfully. I'm not sure what else it could be. I verified with canyouseeme.org that my port 25 is open and not block by my ISP.
Any ideas? thanks