ESET Mail Security 4 - Common message quarantine

Using Exchange 2003, for the Common message quarantine in the docs it says
"Other option is to use Common message quarantine. If you are using an earlier version of Microsoft Exchange Server (5.5, 2000 or 2003), then you simply specify Common message quarantine, which is a mailbox that will be used to store potentially infected messages. In this case, Exchange's internal quarantine system is not used. Instead, a mailbox specified by the system administrator is used for this purpose. As with the first option, you can add a separate quarantine mailbox (or number of mailboxes) for specific recipients. The result is that potentially infected messages are delivered to a separate mailbox instead of being delivered to common message quarantine."

So when I type in "Common message quarantine" into the field titled "Common message quarantine" I then get an error message saying "The email format does not comply with email address standards".

So can someone explain better than the docs what should go in the field then?

TIA

 

An address where want your spam delivered, like spam@domain.com.