Outlook Crashes Forwarding HTML Email.

Hi,  

    We are Using exchange 2007 and Outlook 2013. We use "EMMA" for email newsletters, etc. When we try to forward one of these emails from outlook, while connected directly to exchange, outlook crashes and has to be restarted. 

    If we access exchange through the internet, either with outlook or OWA, it works fine.

   If I attempt to forward the email and chanke tp plain txt, it works fine. If I attempt to change to Rich Txt, it crashes.

   Replying to the email works fine.

Any thoughts, ideas?

Thanks Much,

Rick