I wish to set a rule to perform the following:
1. Transfer the mail to a folder called "rejected mail" when the e-mail
address contain "abc.com" and it is not in my address book.
2. Send a notification e-mail to the sender when the above action is
performed.
3. I tried to set the above using Outlook's rules. But, it only manages to
send the notification once. If I receive the e-mail from the same
unauthorized person again, Outlook will not send another notification to the
sender again.

As a result of that, I'm thinking whether I could set up a script/ macro to
auto reply to the sender when a new mail reach the "rejected mail" folder.

Can anyone help me with this?