DomainKeys Identified Mail (DKIM) and Email Domains
When you create your email template, you can select your company's email domain. This domain replaces each instance of the netsuite.com domain that would show in your emails by default.
For emailed forms or transaction-related emails, you can choose your company’s email domain when you set up your account. For more information, see Setting Email Preferences. Best practice is to make sure the domains you use in Campaign Email Domains and Email Preferences are ones you control the DNS records for.
You can use this same domain for DKIM email authentication. DKIM is an accepted method of verifying the emails you send. Many Internet Service Providers (ISPs) like Google and Yahoo identify email in their recipients' inboxes that has used DKIM. They also use DKIM to verify their own emails.
For more information about setting up email domains and DKIM, direct your administrator to Campaign Email Domains and DomainKeys Identified Mail (DKIM).