Sending E-Mail upon a New Guestbook Entry

One cool feature that is worth adding to our guestbook application is to have the application automatically send an e-mail to us whenever a user leaves a guestbook entry. Without an e-mail notification, in order to see if the guestbook has had any new entries, we'd have to visit the ViewGuestbook.aspx Web page. While this takes only a few moments, it can be a disheartening process if we continually check this page yet find no new guestbook entries.

Therefore, let's extend the AddEntry.aspx Web page so that whenever a user leaves a guestbook entry, we are sent a short e-mail detailing who left the message, the e-mail address (if supplied), the message, and the time the guestbook entry was made.

In order ...

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