Outgoing Email Settings

I'm getting an


The e-mail message cannot be sent. Make sure the outgoing e-mail settings are configured correctly.'


Here's what I've done:


I've installed SharePoint 2013 on a VM.
I have configured the IIS SMTP service (on the same VM) to send mail though my domain host (LFC).
I dropped a test file in the 'Pickup' folder and it does indeed send.
On the 'Outgoing email settings' page in SharePoint, I tried both the local machine name and the hosted domain name.

Both resulted in this same error.

What should the Outbound SMTP server be? I would have thought the local machine since that's where the SMTP service is running, besides there isn't any place to enter SMTP credentials in SharePoint.

Any guidance would be very helpful.