BuddyPress.org

@animeshtripathi

You may also want to look into a plugin that will allow you to use the same e-mail address all accounts, unless you really want to create either 1). 300 E-Mail Accounts or 2). 300 Forwards.

You can check the plugin below out. It should suite your needs.

https://wordpress.org/extend/plugins/allow-multiple-accounts/faq/