SendForm.Aspx is only responsible for emailing HTML submit forms like the contact page. It is not used to send order confirmation emails. You would need to modify AppLogic.SendOrderEmail here:
Code:
// send E-Mail notice to store admin:
if (ord.ReceiptEMailSentOn == System.DateTime.MinValue)
{
try
{
if (AppLogic.AppConfig("GotOrderEMailTo").Length != 0 && !AppLogic.AppConfigBool("TurnOffStoreAdminEMailNotifications"))
{
String SendToList = AppLogic.AppConfig("GotOrderEMailTo").Replace(",", ";");
if (SendToList.IndexOf(';') != -1)
{
foreach (String s in SendToList.Split(';'))
{
AppLogic.SendMail(SubjectNotification, ord.AdminNotification() + AppLogic.AppConfig("MailFooter"), true, AppLogic.AppConfig("GotOrderEMailFrom"), AppLogic.AppConfig("GotOrderEMailFromName"), s.Trim(), s.Trim(), String.Empty, AppLogic.MailServer());
}
}
else
{
AppLogic.SendMail(SubjectNotification, ord.AdminNotification() + AppLogic.AppConfig("MailFooter"), true, AppLogic.AppConfig("GotOrderEMailFrom"), AppLogic.AppConfig("GotOrderEMailFromName"), SendToList, SendToList, String.Empty, AppLogic.MailServer());
}
}
}
catch { }
}