@Jade I believe this topic is specific to the BETA version of SmarterMail, I checked and you appear to be running on a non-beta version.
@Robert, sorry I didn't see this thread earlier. Try updating to Beta 7269, we fixed an issue with NTLM authentication.
Matt Petty
Software Developer
SmarterTools Inc.
(877) 357-6278
www.smartertools.com