>Thanks Michael for the clue.
>In my office evreyone is using Outlook. So I tried to automate using Outlook.
>But as you mentioned I am always getting those warning messages. Is there any way to avoid it?
>Regards
>Rajeev

Nope - If you send email through Outlook, there is no way around it.

That's why you may want to consider other methods if you're not around to respond to the dialog box that pops up. If it's no big deal to you, you may want to live with it.