Blackberry: Set an out-of-office Reply

To perform this task, your BlackBerry® device must be associated with an email account that uses a BlackBerry® Enterprise Server that supports this feature.

1. In a message list, press the Menu key.
2. Click Options.
3. Click Email Settings.
4. If necessary, change the Message Services field.
5. Change the Use Out Of Office Reply field to Yes.
6. In the text box that appears, type a reply.
7. If you use IBM® Lotus Notes®, in the Until field, set the date on which the out-of-office reply should turn off.
8. Press the Menu key.
9. Click Save.

Source: Set an out-of-office reply