Hi,

>Thanks. That works. But, just as you mentioned, using blind copy will cause recipient to see wrong address. I wonder whether I have to send the message to each recipient one at a time.

AFAIK, if you want to show the real recipient in the mail that's your only chance.

>By the way, if I use MAPIMessage.send(0), a warning message box will pop up to warn that there is a message is going to be sent. How can I get rid off this message?

Have a look at thread #607875.

Regards,
Armin