问题现象

在Ubuntu12.04LTS中，邮件病毒扫描程序Clamav报错：

Jul 23 12:20:47 mail postfix/qmgr[18020]: 0D1AF61F95: from=, size=739, nrcpt=1 (queue active)
Jul 23 12:20:48 mail amavis[18032]: (18032-02) (!)run_av (ClamAV-clamd) FAILED – unexpected , output="/var/lib/amavis/tmp/amavis-20130723T122047-18032-utKqe6rf/parts: lstat() failed: Permission denied. ERRORn"
Jul 23 12:20:48 mail amavis[18032]: (18032-02) (!)ClamAV-clamd av-scanner FAILED: CODE(0x2286dd0) unexpected , output="/var/lib/amavis/tmp/amavis-20130723T122047-18032-utKqe6rf/parts: lstat() failed: Permission denied. ERRORn" at (eval 112) line 899.

解决方案

在amavis组中添加clamav用户

# usermod -a -G amavis clamav

检查amavis和clamav用户组

# id amavis
uid=110(amavis)gid=113(amavis)组=113(amavis)

# id clamav
uid=109(clamav)gid=112(clamav)组=112(clamav)，113(amavis)

重启clamav守护进程、amavis和postfix服务

/etc/init.d/clamav-daemon restart
/etc/init.d/amavis restart
/etc/init.d/postfix restart

现在可以重新发送邮件并检查邮件日志