Sieve, Vacation extension questions

I want to write a script that will just give an out of office reply with sieve running on redhat. I am using mulberry as an email client using an IMAP config. I am wondering if you can use the "vacation" script by itself or does it have to be an extension of a filter script ? Here is what I have so far:

vacation
:days 1
:addresses ["[email protected]" "[email protected]"]
:subject "Out of the office"
"I will be out of the office Monday, February 16.
In an emergency, you can call the IT helpdesk @ xxxxx
Otherwise, I will respond to your email after I return on the 17th.";

I figured it out..............