Hi, sending the string "X-MailScanner: Found to be clean" in the mail-header to any of our Qmail-Scanner mailservers, results in a 20 minute hangup of the corresponding qmail-scanner process and a timeout for the remote side. The problem seems to exist with the current 1.25 and any older qmail-scanner version.
Below I attached the output of debugging logs: I noticed the 20min time gap the qmail-scanner process seems to hang. Hopefully we can fix this soon, as this bug makes it easy to flood the machines with DOS attacks... Best regards, Florian Fuessl +++ telnet to qmail-scanner mailserver +++ $ telnet mail.mydemail.de 25 Trying 80.73.96.3... Connected to pineapple.mydemail.de. Escape character is '^]'. 220 pineapple.mydemail.de ESMTP HELO Flo 250 pineapple.mydemail.de MAIL FROM: [EMAIL PROTECTED] 250 ok RCPT TO: [EMAIL PROTECTED] 250 ok DATA 354 go ahead X-MailScanner: Found to be clean . [ timeout of client ] +++ /// +++ +++ LOGFILE: /var/spool/qmailscan/qmail-queue.log +++ pineapple:/var/spool/qmailscan# grep 7636 qmail-queue.log Fri, 08 Apr 2005 14:47:29 CEST:7462: all finished. Total of 1.376367 secs Fri, 08 Apr 2005 14:53:36 CEST:7636: +++ starting debugging for process 7636 by uid=64011 Fri, 08 Apr 2005 14:53:36 CEST:7636: setting UID to EUID so subprocesses can access files generated by this script Fri, 08 Apr 2005 14:53:36 CEST:7636: program name is qmail-scanner-queue.pl, version 1.22 Fri, 08 Apr 2005 14:53:36 CEST:7636: incoming SMTP connection from via SMTP from 84.146.41.243 Fri, 08 Apr 2005 14:53:36 CEST:7636: w_c: mkdir /var/spool/qmailscan/tmp/pineapple11129648164787636 Fri, 08 Apr 2005 14:53:36 CEST:7636: w_c: start dumping incoming msg into /var/spool/qmailscan/working/tmp/pineapple11129648164787636 [1112964816.86263] Fri, 08 Apr 2005 15:13:38 CEST:7636: w_c: rename new msg from /var/spool/qmailscan/working/tmp/pineapple11129648164787636 to /var/spool/qmailscan/working/new/pineapple11129648164787636 [1112966018.88877] Fri, 08 Apr 2005 15:13:38 CEST:7636: d_m: starting /usr/local/bin/reformime -x/var/spool/qmailscan/tmp/pineapple11129648164787636/ </var/spool/qmailscan/working/new/pineapple11129648164787636 [1112966018.88923] Fri, 08 Apr 2005 15:13:38 CEST:7636: d_m: finished /usr/local/bin/reformime -x/var/spool/qmailscan/tmp/pineapple11129648164787636/ [1112966018.90298] Fri, 08 Apr 2005 15:13:38 CEST:7636: d_m: Checking all attachments to see if they're MS-TNEF Fri, 08 Apr 2005 15:13:38 CEST:7636: d_m: is /var/spool/qmailscan/tmp/pineapple11129648164787636/1112966018.8059-0.pineapple is a TNEF file?: 256 [1112966018.90503] Fri, 08 Apr 2005 15:13:38 CEST:7636: d_m: Check for zip files... Fri, 08 Apr 2005 15:13:38 CEST:7636: d_m: unpacking message took 0.016165 seconds Fri, 08 Apr 2005 15:13:38 CEST:7636: unsetting QMAILQUEUE env var Fri, 08 Apr 2005 15:13:38 CEST:7636: g_e_h: no sender and no recips. Fri, 08 Apr 2005 15:13:38 CEST:7636: cleanup: /bin/rm -rf /var/spool/qmailscan/tmp/pineapple11129648164787636/ /var/spool/qmailscan/working/new/pineapple11129648164787636 ------------------------------------------------------- SF email is sponsored by - The IT Product Guide Read honest & candid reviews on hundreds of IT Products from real users. Discover which products truly live up to the hype. Start reading now. http://ads.osdn.com/?ad_id=6595&alloc_id=14396&op=click _______________________________________________ Qmail-scanner-general mailing list Qmail-scanner-general@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/qmail-scanner-general
