Hello, I'm running qmail-1.03 with ucspi-tcp-0.88 and vpopmail-3.4.11-2 on Redhat 6.2. It's working well but sometimes it generates many tcp.smtp.XXXX temporary files and qmail-pop3d began to say "+ERR aack, child crashed". # ls -lg /etc/tcp.smtp* -rw-rw-r-- 1 root root 256 Apr 6 17:23 /etc/tcp.smtp -rw-r--r-- 1 root root 0 Mar 22 20:45 /etc/tcp.smtp.08exw4 -rw-r--r-- 1 root root 0 Mar 22 20:43 /etc/tcp.smtp.09HH8f -rw-r--r-- 1 root root 0 Mar 22 20:46 /etc/tcp.smtp.0Luskq -rw-r--r-- 1 root root 0 Mar 22 20:49 /etc/tcp.smtp.0NiDSa -rw-r--r-- 1 root root 0 Mar 22 20:54 /etc/tcp.smtp.0jH5VR -rw-r--r-- 1 root root 0 Mar 22 20:43 /etc/tcp.smtp.0mai00 -rw-r--r-- 1 root root 0 Mar 22 20:46 /etc/tcp.smtp.0v6lZQ -rw-r--r-- 1 root root 0 Mar 22 20:54 /etc/tcp.smtp.12AAaG At that moment, vpopmail clearopensmtp said the following error. tcprules: fatal: unable to parse this line: xxx.xxx.213.61:alloAYCLIENT="" Once I had this trouble, tcp.smtp.cdb has been corrupted and I always need to do "tcprules tcp.smtp.cdb tcp.smtp.tmp < tcp.smtp". Is that a bug of clearopensmtp or vchkpwd on the version? (insufficient lock or mutex at some critical section?) Is that also related to some vpopmail-3.4.11 problem as described below? http://www.geocrawler.com/archives/3/91/2000/6/0/3967618 I'm just going to upgrade vpopmail to the lastest, but I'd like to know what really caused it before I will upgrade. I would appreciate if someone would give me any advice. Best Regards ---- Shin Kashiwagi / [EMAIL PROTECTED]