Unfortunately, no. For security reasons, users may not share an email address. All users must have their own unique email address, and an email address may only be used by one user account. We recommend getting a free Gmail address for users needing to set up their own email address (www.gmail.com).
Why must everyone have unique email addresses?
To prove account ownership and verify identity, we must send correspondence to the email address on file. If more than one user shared an email address, we would have no way of verifying a user's identity in some situations. In a worst-case scenario, someone with malicious intent could register an account with your email address and then claim to be you if we were allowing multiple people to have the same email address. We implement this strict policy to protect you, your identity, and your data for these security reasons.
What if the account is deactivated?
Deactivating a user account will not alleviate this conflict. An email address will continue to remain associated with the original user and will be unusable by a new user account, even if a user account is deactivated.