No limit to release spam quarantine messages

Hey Symantec community

Here is one point for improvment that should be taken in consideration:

We are looking for an option to delete all messages in SPAM quarantine folder and having more than 500 messages to be deleted options.

This will be greate if this can be done using both the command line and SMG it self.

note: in my case one legitimate user send out more than 50K  messages and it was a nightmare for me to release them 500 by 500 messages.