LinuxQuestions.org - qmail error trying to send mail: â??preline: fatal: child crashedâ?

I am running Listserv for unix version 15.5 with qmail 1.03 as my mail sender on and have had no issues over the past 4 years or so.

Code:

Server Version info: [root@s15252382 listserv]# uname -a 

Linux REDACTED.com 2.6.18-028stab092.1 #1 SMP Wed Jul 20 19:47:12 MSD 2011 x86_64 x86_64 x86_64 GNU/Linux

So recently, when our listserv administrator attempts to start a new post in listserv by emailing our designated listserv email address: REDACTED@listserv.REDACTED.com, we get a failure notice back. If I reboot the server, it clears things up for a little while, but the problem always returns. Listserv support says it appears to be a server issue.

Code:

From: MAILER-DAEMON@REDACTED.com [mailto:MAILER-DAEMON@REDACTED.com]

Sent: Thursday, November 03, 2011 12:25 PM

To: REDACTED@comcast.net

Subject: failure notice

Hi. This is the qmail-send program at REDACTED.com. I'm afraid I wasn't able to deliver your message to the following addresses. This is a permanent error; I've given up. Sorry it didn't work out.

REDACTED@listserv.REDACTED.com: preline: fatal: child crashed

--- Below this line is a copy of the message.

Then this is the snippet from the qmail log file at :

Quote:

Nov 6 07:30:14 s15252382 relaylock: /var/qmail/bin/relaylock: mail from 76.96.62.64:41114 (qmta07.westchester.pa.mail.comcast.net)
Nov 6 07:30:15 s15252382 qmail-queue-handlers[30188]: Handlers Filter before-queue for qmail started ...
Nov 6 07:30:16 s15252382 qmail-queue-handlers[30188]: from=REDACTED@comcast.net
Nov 6 07:30:16 s15252382 qmail-queue-handlers[30188]: to=REDACTED@listserv.REDACTED.com
Nov 6 07:30:16 s15252382 qmail-queue-handlers[30188]: hook_dir = '/var/qmail//handlers/before-queue'
Nov 6 07:30:16 s15252382 qmail-queue-handlers[30188]: recipient[3] = 'REDACTED@listserv.REDACTED.com'
Nov 6 07:30:16 s15252382 qmail-queue-handlers[30188]: handlers dir = '/var/qmail//handlers/before-queue/recipient/REDACTED@listserv.REDACTED.com'
Nov 6 07:30:16 s15252382 qmail-queue-handlers[30188]: starter: submitter[30189] exited normally
Nov 6 07:30:16 s15252382 qmail: 1320586216.071901 new msg 617483051
Nov 6 07:30:16 s15252382 qmail: 1320586216.072084 info msg 617483051: bytes 43813 from <REDACTED@comcast.net> qp 30189 uid 2020
Nov 6 07:30:16 s15252382 qmail: 1320586216.078452 starting delivery 3712: msg 617483051 to local REDACTED@listserv.REDACTED.com
Nov 6 07:30:16 s15252382 qmail: 1320586216.078582 status: local 1/10 remote 0/20
Nov 6 07:30:16 s15252382 qmail-local-handlers[30190]: Handlers Filter before-local for qmail started ...
Nov 6 07:30:16 s15252382 qmail-local-handlers[30190]: from=REDACTED@comcast.net
Nov 6 07:30:16 s15252382 qmail-local-handlers[30190]: to=REDACTED@listserv.REDACTED.com
Nov 6 07:30:17 s15252382 LSV:lsv_amin[30194]: Mail for REDACTED (from 2021/10002) delivered to LISTSERV.
Nov 6 07:30:17 s15252382 qmail-local-handlers[30190]: cannot reinject message to 'REDACTED@listserv.REDACTED.com'
Nov 6 07:30:17 s15252382 qmail: 1320586217.168400 delivery 3712: failure: preline:_fatal:_child_crashed/
Nov 6 07:30:17 s15252382 qmail: 1320586217.217495 status: local 0/10 remote 0/20
Nov 6 07:30:17 s15252382 qmail-queue-handlers[30195]: Handlers Filter before-queue for qmail started ...
Nov 6 07:30:17 s15252382 qmail-queue-handlers[30195]: from=
Nov 6 07:30:17 s15252382 qmail-queue-handlers[30195]: to=REDACTED@comcast.net
Nov 6 07:30:17 s15252382 qmail-queue-handlers[30195]: hook_dir = '/var/qmail//handlers/before-queue'
Nov 6 07:30:17 s15252382 qmail-queue-handlers[30195]: recipient[3] = 'REDACTED@comcast.net'
Nov 6 07:30:17 s15252382 qmail-queue-handlers[30195]: handlers dir = '/var/qmail//handlers/before-queue/recipient/REDACTED@comcast.net'
Nov 6 07:30:17 s15252382 qmail-queue-handlers[30195]: starter: submitter[30196] exited normally
Nov 6 07:30:17 s15252382 qmail: 1320586217.252127 bounce msg 617483051 qp 30195
Nov 6 07:30:17 s15252382 qmail: 1320586217.252292 end msg 617483051
Nov 6 07:30:17 s15252382 qmail: 1320586217.294181 new msg 617495371
Nov 6 07:30:17 s15252382 qmail: 1320586217.294354 info msg 617495371: bytes 44375 from <> qp 30196 uid 2522
Nov 6 07:30:17 s15252382 qmail: 1320586217.313034 starting delivery 3713: msg 617495371 to remote REDACTED@comcast.net
Nov 6 07:30:17 s15252382 qmail: 1320586217.313225 status: local 0/10 remote 1/20
Nov 6 07:30:17 s15252382 qmail-remote-handlers[30197]: Handlers Filter before-remote for qmail started ...
Nov 6 07:30:17 s15252382 qmail-remote-handlers[30197]: from=
Nov 6 07:30:17 s15252382 qmail-remote-handlers[30197]: to=REDACTED@comcast.net
Nov 6 07:30:18 s15252382 qmail: 1320586218.455865 delivery 3713: success: 76.96.62.116_accepted_message./Remote_host_said:_250_2.0.0_tpWJ1h00U1y9fre05pWJs4_mail_accepted_for_delivery/
Nov 6 07:30:18 s15252382 qmail: 1320586218.456102 status: local 0/10 remote 0/20
Nov 6 07:30:18 s15252382 qmail: 1320586218.456215 end msg 617495371

The actual email message has no anomalies or anything strange going on. Any ideas on what could be causing this or where I can look? I am a novice Linux admin, so I apologize if I am missing any required upfront info.

Thanks!