realm not present

Hi,
I have sork vacation setup and operating.
My server has virtual domains.

So here is my issue.
The user logs in to the web interface with a full username: 
[email protected] and their password.

The user clicks on 'vacation' and submits "Set/install vacation notice"

When I look in the mysql table the Sork Vacation has inserted the user, 
vacation_msg and vacation_sub in to a new row. The user is set as 
'joedoe' and NOT '[email protected]'

So now there is a user 'joedoe' AND '[email protected]'
Obviously Sork vacation should be updating the fields for user 
'[email protected]' and not inserting a new user.

Looking at vacation/lib/Driver/sql.php I see the $user is taken from the 
function
_buildUsername()

    function _buildUsername()
     {
         if ($this->_realm === 'default' ||
             $this->_realm === '') {
             return $this->_user;
         } else {
             return $this->_user . '@' . $this->_realm;
         }
     }

is there something I need to change in Sork Vacation configuration or 
the Horde settings regarding realms?

Thanks for your time and effort,
Warren


I am using:
ubuntu server 8.04LTS
postfix-mysql - 2.5.1
mysql-server-5.0 - 5.0.51
courier-imap -  4.3.0
Horde Groupware Webmail Edition 1.2.4 (September 14 2009)
sork-vacation-h3 3.0.1-1
autovacation module for Horde Framework 3.3.0-0.3

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