Form type in Lotus Notes

Hi,

 I am investigating a problem in Lotus Notes. I want to know the form type of the mail that reaches Lotus Notes when sent/replied from Microsoft Outlook or Outlook Express.

Please reply if you know the answer. If not and if you are using any of the specified mail clients then just send me a test mail specifying ‘MO’ or ‘OE’ in subject

Thanks n Regards,

Ajay Chawla