Zoho People Notification emails going to spam

Zoho People Notification emails going to spam

Many of the approval emails being generated by Zoho People are going to employee's spam folders instead of their inbox. I think the issue is that Zoho servers are not authorized to send mail on behalf of our domain @motionrc.com  .  I think we need to enter DKIM and/or SPIF settings in our domain record so that Zoho can send mail as @motionrc.com.  Can someone from Zoho please confirm how to fix this.  Thank you.
Mark