A Domain Admin can see spam listed under the Public-Spam Trap from within WorldClient. Here the email can be tagged as Spam, forwarded, etc. but it cannot be Released.

Releasing legitimate email from the Spamfilter queue can only be performed by the Global Admin yet the Domain Admin can see all the spam - regardless of the domain - under the Public-Spam Trap.

At a minimum, if the Domain Admins can see the Public-Spam Trap under WorldClient then they should be able to see the Spamtrap Queue under Remote Administration.

-OR-

the ability to Release needs to be allowed from within WorldClient by Domain Admins