i think it would be a good feature to have the ability to enter in your own smtp server details,
when creating the custom install .exe or msi,
so when installing on the host from the custom .exe or msi it will send the email with the host details through which ever smtp server you have chosen, which then sends the email to the admin email address specified when building the .exe or msi
for example
SMTP: mail.yourdomain.com
username: username
password: password
and maybe a test button to test