You can send email to 1,000 recipients per day per IP on the outbound email servers. Once you reach the limit, your email is refused by the email servers for the next 24 hours.
You can use the Road Runner service as a connection for VPN; however, Road Runner does not provide support for installing or troubleshooting VPNs. Road Runner is not responsible for troubleshooting problems that might occur as a result of using your Road Runner service with the VPN.