Hi all, I was working on a batch file to make it run ipconfig /all create a text file with the result and email it to me. While working on it I discovered that I was able to use our SMTP engine from outside without any authentication, like this: commail.exe -host=ServerName.DomainName.com -from=MyEmail1@xxxxxxxxxxxxxxx -to=MyEmail2@xxxxxxxxxxxxxxx Is this normal? How can I secure it so it would only be used by authorized personels. Thanks