Redolog filling up my disk

So, I just about ran out of space on my /opt/zimbra drive. In digging deeper. I found that my store is about 100G. However, I have over 200G of redolog archive. What I learned from the Zimbra community is that Network Edition keeps 30 days worth in the backup and deletes the rest. Apparently, Zextras doesn't? Why do I have this proliferation of redolog archives? Does Zextras not handle those?

Thanks,
Stephen