Click the Hosting Features menu item if it is not already open.
Click the E-mail menu item if it is not already open.
Click the Mailboxes menu item.
Click the Edit button next to the E-mail account you wish to add/edit the vacation message for.
If the Vacation Message is currently off, click the On radio button next to On Vacation.
Type a message in the Vacation Message box. This message will be sent automatically to anyone sending an email to this account.
If the Vacation Message is currently on, click the Off radio button next to On Vacation.
Click the Save button.
Vacation mode can also be changed via the Horde/IMP Webmail software that is provided.