0x80070057-00000000-00000000
 

Hi Folks,
I have gotten this NDR in my Outlook 2007 clients updated from my updated
Exchange 2003 server when trying to schedule meetings via internal and
external recipients. It is not consistent. I have searched it and there are
lots of ppl asking questions about it but no real answers, just maybe try
this or that. Has anyone come across an answer yet? I do not send mail
through my own programming. Just Exchange. Thanks!