>on the first one I meant, to send an e-mail at 8:00AM today but don't go out yet until, say, 2:00PM same day. Reason is the first e-mail is a request, second if they didn't respond, would be a friendly remainder.
>
>Thanks for your response.

Hi,

So, this imples that you need to do some processing if you DO receive a response, i.e. delete the second eMail. Why not just turn it round. So when you send the first message, log the time in a table, create a task that runs maybe hourly, looks in the table to see who has been sent a message (n hours previously), then checks the mailbox for a reply. If it doesn't see one, then send the reminder.