Website Domains and Email Hosting
If you're planning to send more than 100,000 marketing emails in 30 days, you need to set up a campaign domain. Similarly, if you're sending more than 10,000 emails in one campaign, you'll also need a campaign domain. You can use your own domain for your email campaigns.
To set up a domain for your email campaign, you'll need to configure your Domain Name System (DNS) settings to point your domain to NetSuite hosting servers. Most of the time, your domain provider can redirect your domain using a CNAME record (Canonical Name record). This designates your domain an alias of the NetSuite hosting domains assigned to your account. For more information about setting up a CNAME record, see Point Your Domain Name at Your Domain (DNS Settings) and for more information about using a custom domain for email campaigns, read the help topic Campaign Email Domains.
You might not need a campaign domain as described above, but you may need one to host company emails. As a best practice, you shouldn't use your domain for multiple purposes. The most common example is when you're using your root domain to host several services. As an example, the website https://wolfeelectronics.com and the company email [email protected] are sharing the same root domain.
You shouldn't use the same root domain for your website and your email campaigns. Problems can occur when you assign multiple DNS records to one root domain. For example, if you set up example.com for both shopping and email marketing, you may encounter problems such as email server failures.