All domains are "email-enabled", all of them /can/ be used for email. You just have to setup an email server (or buy 'email server' access from someone who sel

All domains are "email-enabled", all of them /can/ be used for email. You just have to setup an email server (or buy 'email server' access from someone who sells the same) somewhere that handles email for the domains. And then point the MX records in DNS for the domains for which you want to receive email at the email servers that handle email for those domains.