DKIM signing enables you to validate the origin of your emails, helping keep your email content intact and untampered with throughout the delivery process. This also helps preserve your identity and eliminate spam and phishing attacks from those trying to trick you into opening a link or a file that contains a virus.
Netsuite recommends that you configure DKIM for your domain. You can take a look at their Netsuite marketing automation guide to learn about how they handle SPF and DKIM email authentication on your custom domain.
Lookup and validate the published DKIM DNS record using this free DKIM record lookup tool. Enable DMARC for your domains to protect against spoofing. Sign up for a DMARC trial today!