You can have a vacation message automatically sent to anyone who sends you mail. This feature is activated when you enter a message in this text box. (In other words, as long as this box is empty, a vacation message is not sent.)
If you want to send a vacation message, enter the message in the text box. This message will be sent once to each user that sends you mail and is limited to 1000 characters. When you are done, click Save.
Web Messaging tracks the e-mail addresses of those who have been sent your vacation message; this prevents any one e-mail address from receiving your vacation message more than once.
Note: Compare this feature to the Auto Response feature (which sends an automatic response to each message that's received, regardless of whether or not the sender has already received the automatic response.