I'm still trying to reduce the size of our bayes database. I've tried putting bayes_expiry_max_db_size 1000000 into local.cf and restarting services - this didn't have much effect
If you're trying to REDUCE the size of your bayes database, don't increase the value of bayes_expiry_max_db_size... decrease it.
However, your problem is not related to this setting. It's related to the timestamps on your tokens being corrupt.
