I want to stop EPiServer from sending a mail when a form is submitted. This was supposed to be as easy as hooking up to the BeforeSubmitPostedData event and setting the ChannelOptions as in the code below, but when the event fires e.FormData.ChannelOptions is always None so changing it here has no effect.

if ((e.FormData.ChannelOptions & ChannelOptions.Email) == ChannelOptions.Email)
{
    //  e.FormData.ChannelOptions is always None here
    e.FormData.ChannelOptions &= ~ChannelOptions.Email;
}

In my PostAction I found that xFormpostedData.SelectedSubmit.ChannelOptions have the correct values, but I cannot set it here cause it has noe setter.

[AcceptVerbs(HttpVerbs.Post)]
public ActionResult DoSubmit(XFormPostedData xFormpostedData)
{
    // In variable below we get the correct ChannelOptions
    var tmp = xFormpostedData.SelectedSubmit.ChannelOptions;
    return _xformHandler.HandleAction(this);
}

// This is how I am rendering the form in the view
@Html.PropertyFor(x => x.XForm, new { XFormParameters = new EPiServer.XForms.Util.XFormParameters() { PostAction = "DoSubmit", SuccessAction = "Success", FailedAction = "Failed" } })

What am I missing?