Users are unable to change the email address on their CoinTracker account at this time from the Settings page.
While we do not have an estimated release date, we can assure you our engineering team is working diligently to allow users to change their email.
You can subscribe to follow along for updates on this forum post.
As a temporary solution, we recommend users create a new CoinTracker account with the desired email and re-add your wallets and exchanges to your new account. We (CoinTracker) can then transfer your Tax Plans or provide a credit for your Portfolio subscription to your new account to resume your services.
You can submit a request here for more assistance.