The Mail to SMS service converts e-mails into SMS. This service focuses on clients that, for various reasons, are unable to connect to YellowPepper via VPN or Web services. The client simply sends an e-mail to YellowPepper with the desired message and the phone numbers which they want to receive the message. YellowPepper converts the email to an SMS. To avoid spam and unauthorized use, only authorized IP addresses within the client’s organization are allowed to send the notifications.