The benefit of utilising the Custom From Address for content notifications is that it greatly aids in overall adoption and engagement of your released content.
It achieves a positive reception from your end users, as they will have been presented with a course notification that is from a familiar domain to them. This means that they will deem the notification to have come directly form your organisation; this is proven to greatly improve the overall adoption of released content, as end users are less likely to perceive the notification as suspicious.
With higher adoption rates for your released content, you will be in a better position to mitigate the risks posed to the organisation, further raise awareness among colleagues and improve the company's culture.