amavisd問題

今天發生不能收寄信的問題，查了 /var/log/maillog訊息如下

Apr 25 11:48:05 xxx amavis[1629]: starting.  /usr/sbin/amavisd at xxx.com amavisd-new-2.4.0 (20060403), Unicode aware, LANG=zh_TW.UTF-8
Apr 25 11:48:05 xxx amavis[1629]: user=103, EUID: 103 (103);  group=, EGID: 104 104 (104 104); log_level=1
Apr 25 11:48:05 xxx amavis[1629]: Perl version               5.008005
Apr 25 11:48:05 xxx amavis[1629]: SpamControl: init_pre_chroot done
Apr 25 11:48:05 xxx amavis[1629]: Net::Server: 2007/04/25-11:48:05 Pid_file already exists for running process (2263)… aborting

  at line 296 in file
/usr/lib/perl5/vendor_perl/5.8.5/Net/Server.pm
Apr 25 11:48:05 xxx amavis[1629]: Net::Server: 2007/04/25-11:48:05 Server closing!

也不知這所謂的 pid_file到底在那裡，後來靈機一動，想是不是 amavisd.pid阿，
刪了 /var/xxx/amavisd.pid，重新啟動 amavisd就 ok啦