Ok, so after
rm -rf /opt/zimbra/amavis/tmp/amavis*
I still have the same emails coming in one after another (on the web interface).
postqueue -p shows an empty queue
amavis has a clean queue (i think, based on rm -rf the /tmp/ directories)
we aren't using the spam filtering
is there another queue it could be stuck in that i'm missing or something?