Amavisd没有正常启动，会导致邮件服务器异常，最常见的错误，就是在启动amavisd的时候，出现Missing process ID in file /var/spool/vscan/amavisd.pid at /usr/sbin/amavisd line 13905的错误提示，而在maillog日志看到的错误，就是Connect to 127.0.0.1[127.0.0.1]:10024 Connection refused.如果你的邮件队列很多待发邮件，那么可以编辑 /etc/postfix/main.cf把下面的两行先注释掉在重新POSTFIX，让邮件先发出去：

#content_filter = smtp-amavis:[127.0.0.1]:10024
#receive_override_options = no_address_mappings
接着，我们来解决amavisd的问题，首先我们用 ll /var/spool/vscan/来看看文件夹的权限，发现是rw-r-----也就是640的权限，我们将其修改为755.

service amavisd stop
chmod -R 755 /var/spool/vscan/
rm -rf /var/spool/vscan/amavisd.pid
service amavisd start