Sending Email

SuiteCRM appears to have 2 outgoing email setups??
When I use the Compose function and send and email it works fine.
If I got into Outgoing email and configure accounts and hit Send Test Email, it fails with the stupid Github (doesn’t tell you anything waste of time) error.
Mail setting for both the Compose and the Outbound are identical.
Any ideas? Very frustrating.
Cheers, Rob