I’ve ths error in /var/log/maillog:
(!)connect to /var/run/clamd.amavisd/clamd.sock failed
I solved in this way:
Edit /etc/clamd/clamd.conf
LocalSocket /var/run/clamd.amavisd/clamd.sock
User amavis
the User I defined (amavis), have to be the owner of the folder /var/run/clamd.amavisd
in the file /etc/amavisd/amavisd.conf you need the same file before : /var/run/clamd.amavisd/clamd.sock in this position
# ### http://www.clamav.net/
[‘ClamAV-clamd’,
\&ask_daemon, [“CONTSCAN {}\n”, “/var/run/clamd.amavisd/clamd.sock“],
qr/\bOK$/, qr/\bFOUND$/,
qr/^.*?: (?!Infected Archive)(.*) FOUND$/ ],