We are moving towards providing users' wishes and needs. You can have any number of e-mail addresses under your account in Wrike. It's an important feature for those who manage both personal and business activities and have more than one e-mail address. No matter from which e-mail you create tasks in Wrike, they are structured in accordance to your logic. They won't be separated only because you use a different e-mail address.
At the same time you can easily indicate and change of a primary e-mail and receive notifications only there. Schematically, you may input information through several sources, and receive to only one.