It is always a good idea to keep your account email up to date as we send out important emails to it including domain expiration notices. We also recommend not using an email address associated with a domain in your account in case that domain expires (which means you won't be able to access your email). Here are a few examples of some of the emails you'll received from us:

You can update your account email and your renewal email as well as update your Whois email in your Dynadot account. You can also subscribe or unsubscribe from our newsletter.