FYI:
D_PASS: Mail will pass to recipients, regardless of bad contents. If a quarantine is configured, a copy of the mail will go there, if not, at least the recipient received the mail. Note that including a recipient in a @*_lovers_maps is functionally equivalent to setting $final_*_destiny = D_PASS; for that recipient.
So, do you have any quarantine settings in Amavisd config file? Show us output of below command please:
# cd /etc/amavis/conf.d/
# grep 'quarantine' *