/etc/clamd.d/amavisd.conf の変更
vi /etc/clamd.d/amavisd.conf
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# Path to a local socket file the daemon will listen on.
#LocalSocket /var/spool/amavisd/clamd.sock
LocalSocket /tmp/clamd.socket
/etc/amavisd/amavisd.conf は使っていない。
参照 -> /etc/sysconfig/clamd.amavisd