[Zope] Silly send mail problem

Hi all, I had a sendmail problem, whenever I send out a mail from zope, it always contain an empty "To" ,"From" and "Subject", but I was able to get the body of the mail, anyone got this problem before ?? I'm using Zope 2.1.6 on NT and the mail server is from Lotus, and the form processor syntax as below : <dtml-sendmail smtphost="mail.xyz.com" mailto="wai@xyz.com" mailfrom="wai@xyz.com" Subject="Testing from my machine"> mail body </dtml-sendmail> Thanks. Cheers Wai