I have a virtual server using a fixed external ip and operating as a dedicated Exchange Server 2013 with Windows Server 2012 Standard. I have migrated accounts over from another VM running Exchange 2007. All recipients, accepted domains, policies etc appear to have been imported but I am facing some challenges configuring Exchange 2013 to relay external mail. Internal mail relays just fine and mail is being received from both internal and external sources.
I have two Send Connectors set up.
The first was created during Exchange Setup:
General
Name: “To Internet”
Connector Status: Enable
Comment: Null
Protocol Logging level: None
Maximum Message Size: 50MB
Delivery
Send mail connector: MX record associated with recipient domain
Smart Host: Null
Use external DNS lookup on servers with transport roles: Unchecked
Scoping
Type: SMTP
Domain:*
Cost:10
Scoped send connector: Unchecked
Source server: My 2007 server & My 2013 Server
FQDN: My 2013 servers external domain name
The second I created to try and overcome the problem by using a Smart Host albeit my host restrict the volume of mail allowed and so this would be inadequate in the long term but in any event a test mail was rejected by their server:
General
Name: “Send Internet Mail”
Connector Status: Enable
Comment: Null
Protocol Logging level: None
Maximum Message Size: 10MB
Delivery
Send mail connector: Route mail through smart host
Smart Host: My providers smart host
Authentication: Basic using my account details
Use external DNS lookup on servers with transport roles: Checked
Scoping
Type: SMTP
Domain:*
Cost:1
Scoped send connector: Unchecked
Source server: My 2013 Server
FQDN:NULL
Initially I was getting "unable to relay" messages but with the various tweaks and changes I've made I have overcome this and now I get "delivery delayed" messages so it seems the mail is queuing but not getting sent.
Any help would be very much appreciated.
Brian Watson