Yes, I believe somewhere internally we have a maximum loaded into the quarantine area. This is a visual thing, the backend is still catching and processing viruses. We could probably remove that internal limit, not sure what purpose it is serving. I've added this to our bugs list for tracking.

it is nice to see it is still working and that number changes tells you such.

I assume that after x time, items will be automatically cleared - but seeing the number change, whether it is up or down makes you believe something is working.

Following this through the choices of retention are 0 days and 15 days

If 6000 mails arrived between that time

If the email marked as :VIRUS is email number 5002 or greater it will then not be searchable

And if only X amount of viruses are displayed, it should be the X newest entries. I have currently only 11/23 to 11/11 available to search.