Answer:
Either create a new email for the customer or leave it blank
Explanation:
LEAN which is an acronym of Landmark Electronic Application Navigator is an application by UnitedHealthcare, which is utilized for their enrollment application process. It is built to aids all forms of Medicare Products and Plans.
However, according to the rules and guidelines in its application enrollment, if a consumer does not have an email address, then agent is not allowed to use another personal email address instead, but rather, leave it blank, or quickly create a new email to be used for the consumer.