If your workplace is no exception and some of the employees will be away, make sure to setup an automatic email reply on your Exchange server. This way you'll keep your customers informed that you are gone and when you'll be back to assist them.
Additionally it is also a great opportunity to add Merry Christmas and Happy New Year wishes to your autoreply! With MSH Exchange Autoresponder it's easy - you can even add some holiday graphics to your message.
All the best and have a great holiday! - MSH Software Team