Outlook 2010 Auto Config doesnt tick the "use outgoing mail server auth" settings

Hi Guys

I've got a domain here and an auto-config setup for Outlook whereby it goes to a website on the domain controller and downloads an xml looking like this:

<?xml version='1.0' encoding='utf-8' ?>
<Autodiscover xmlns='http://schemas.microsoft.com/exchange/autodiscover/responseschema/2006'>
  <Response xmlns='http://schemas.microsoft.com/exchange/autodiscover/outlook/responseschema/2006a'>
    <User>
      <DisplayName>User Name</DisplayName>
    </User>
    <Account>
      <AccountType>email</AccountType>
      <Action>settings</Action>
      <Protocol>
        <Type>IMAP</Type>
        <Server>mail.host.com</Server>
        <Port>143</Port>
        <LoginName>user@host.com</LoginName>
        <DomainRequired>off</DomainRequired>
        <SPA>off</SPA>
        <SSL>off</SSL>
        <AuthRequired>on</AuthRequired>
      </Protocol>
      <Protocol>
        <Type>SMTP</Type>
        <Server>mail.host.com</Server>
        <Port>25</Port>
        <LoginName>user@host.com</LoginName>
        <DomainRequired>off</DomainRequired>
        <SPA>off</SPA>
        <SSL>off</SSL>
        <AuthRequired>on</AuthRequired>
        <UsePOPAuth>on</UsePOPAuth>
        <SMTPLast>on</SMTPLast>
      </Protocol>
    </Account>
  </Response>
</Autodiscover>

As can be seen, we use IMAP here rather than exchange

Now, when I go to set up an account, outlook DOES configure most things presented in this XML, but there seems to be a bug in that while it knows and enables "My outgoing server(SMTP) requires authentication" checkbox, it DOESN'T then enable the relevant radio button that one would assume <UsePOPAuth> (== use the same settings as my incoming server) intends.. No radio button is checked, which means that mails do NOT send :/

Here's a pic:

Image may be NSFW.
Clik here to view.

So, alas, my auto-setup still requires the depeest level of manual interaction to set it up.. i.e. it's fairly useless. I'd say for sure this is a bug in outlook's auto config, but how to report it to microsoft?