I have a Perfect Server Ubuntu 18.04 ISPConfig installation working pretty good as far as I can tell. Then suddently I started getting ***UNCHECKED*** prepended to the subject of all email messages. I checked the clamav.log and saw the following messages: Code: Sat Jun 27 19:27:48 2020 -> Running as user clamav (UID 117, GID 121) Sat Jun 27 19:27:48 2020 -> Log file size limited to 4294967295 bytes. Sat Jun 27 19:27:48 2020 -> Reading databases from /var/lib/clamav Sat Jun 27 19:27:48 2020 -> Not loading PUA signatures. Sat Jun 27 19:27:48 2020 -> Bytecode: Security mode set to "TrustSigned". Sat Jun 27 19:28:04 2020 -> ERROR: Malformed database So I decided to reaload the ClamAV Signature DB as follows: Code: systemctl stop clamav-freshclam freshclam systemctl start clamav-freshclam If I send an email now I do not get the ***UNCHECKED*** prepended to email subject line which looks fine except that the Clam Deamon is not running: Code: ps ax | grep [c]lamd produces no output. If I start the deamon: Code: service clamav-daemon start Then the service will show as running and the ***UNCHECKED*** flag is not prepended to email subjects. Just do not know if it should be running or not. Before updating the DB I restarted the Demaon and got no ***UNCHECKED*** msg but the Deamon will stop on its own in a few hours. I think my issue was the Signature DBs but my question is if I should run start the Demaon or not. Thanks for any help.