4. BulletMail
BulletMail is another email service provider that allows its users to create completely anonymous email accounts if they want to. On their registration page, they will prompt you to put in an alternative email address and/or a phone number for password recovery, but that is only optional. You can create as many email accounts as you need without ever having to fiddle with security codes and verification. All in all, a safe and secure alternative email service provider where you can still make anonymous email accounts with ease.