Scripts that support using CDONTS or CDOSYS (Microsoft's internal SMTP components) can be used natively on the server, as CDONTS and CDOSYS are available. Due to security reasons (to avoid spamming) you have to open a support ticket for our Windows department, to assign the necessary permissions for you to use CDONTS or CDOSYS.
For scripts requiring an SMTP server, please use your own SMTP server, mail.yourdomain.com. Using any other component than CDONTS or CDOSYS does not require any extra permissions.