[exim] problem Tainted permission to file autoreply once

Heloo
Please help
I wanted to limit the reflection of mail with the autoresponder turned on, but after adding the option ONCE_FILE = /var/spool/exim/db/autoreply_${local_part}_${domain}.db In my logs I have the message defer (13) permission denied Tainted /var/spool/exim/db/autoreply_username_mydomian.eu.db
exim runs with user exim and group exim, I have set the permissions for the group and user for the db directory

regards
slawek