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For some reason the Dr.Web, qmail and SpamAssassin integration on Plesk sometimes does not work properly after an upgrade.

It is important to make sure that the binaries in the /var/qmail/bin directory have the following permissions, to enable Dr.Web, qmail and SpamAssassin to work together.

-r-s–x–x 1 drweb qmail 161024 Mar 19 01:34 qmail-queue
-r-s–x–x 1 drweb qmail 161024 Mar 19 01:34 qmail-queue.drweb
-r-s–x–x 1 qmailq qmail 15936 Aug 24 2005 qmail-queue.origin

The process runs as follows:

1. Incoming mail will be delivered using the qmail-queue binary, which is a specially compiled version that allows qmail to scan the email for viruses.
2. The qmail-queue binary will write a temporary file in the /var/drweb/spool/ directory. It is therefore important to check the permissions on the /var/drweb/spool/. They should be:
   

   drwxrwx— 2 drweb nofiles 4096 May 3 13:20 spool

3. The qmail-queue binary will also read the /etc/drweb/drweb_qmail.conf file and it will execute the file found in the QmailQueue = tag, once virus scanning is complete. The QmailQueue = tag usually contains:
   

   /var/qmail/bin/qmail-queue.origin

4. After the virus scanning process completes, the qmail-queue.origin binary will run. This binary will in turn run the SpamAssassin rules as defined in each users configuration.

The following files maybe useful in locating a problem:

1. /usr/local/psa/var/log/maillog – This file contains the mail logs and you will quickly see if any errors are being generated in it.
2. /var/drweb/log/drwebd.log - This file contains the Dr.Web logs for all scanned emails.

This entry was posted on Wednesday, May 3rd, 2006 at 1:25 pm and is filed under General, Plesk, Plesk for Linux. You can follow any responses to this entry through the RSS 2.0 feed. You can skip to the end and leave a response. Pinging is currently not allowed.