go to: http://mail.themarcomgroup.com
Enter in your user Account (the first part of your email up to the @ sign, do not include the at sign. For example if your email address is johndoe@yourdomain.com enter in the following:
User Account: johndoe
Domain: yourdomain.com
Password: ******
You can set your Vacation/Out of Office response there. Be sure to check the appropriate boxes.
NOTE: Don’t forget to turn it off when you return! Set a reminder in your calendar.