rspamd/debian/rspamd.logrotate

/var/log/rspamd/rspamd.log{
       daily
       rotate 4
       delaycompress
       compress
       notifempty
       missingok
       postrotate
          if [ -f /bin/systemctl ] ; then systemctl --signal USR1 kill rspamd.service ; else service rspamd reopenlog >/dev/null 2>&1 ; fi || true
       endscript
}