Hi.
I have deploy one Edge and create a subscription with my hub transport, inbound email from internet is working, but outbound email is not working. The email stuck in the Send connector "EdgeSync - SiteA to Internet with error" when I saw the EMC from the hub.
I get this error
"451 .4.4.0 Primary target IP address responded with 451 5.7.3 Cannot achieve Server authentication"
The edge server is connected to DMZ is not join a Domain. The DNS resolution is OK.
please help.