@wrx7m said in Exchange 2016 - NDR:

@scottalanmiller said in Exchange 2016 - NDR:

@Natchos said in Exchange 2016 - NDR:

@JasGot Awesome, thanks for the input. I'll look into SPF.

SPF is considered a requirement these days. And DKIM is heavily recommended.

People are starting to come around. I have been using DKIM for a few years for all services sending email outside our org. With O365, SPF and DKIM are part of the setup.

Same with Zoho.