On Mon, 2009-06-29 at 10:49 +0200, Willy Janssen wrote: > Hello, > > We scan all outgoing mail as we absolutely don't want to send out any > virusses. To accomplish this, we have a two-stage (separate) Postfix > setup, connected via a content_filter for Amavis/ClamAV: > > Postfix (incoming stage) --> Amavis/ClamAV --> Postfix (sending stage) > > However, during the last days some virusses seemed to slip through (we > were trapped by an external party). What I can think of is the > possibility that a mail is scanned and found to be clean is going > to the second Postfix and sits there in the queue. Suppose it cannot be > delivered immediately. > > As the queue lifetime is in the order of days, it can take a while > before the message is delivered. During that time the ClamAV database > could be updated to recognize this message as a virus. However, it won't > get scanned again as it is already in the outgoing queue. And we're > sending the virus mail. > > My question, is it possible to requeue a message to the first stage (the > incoming) to scan the mail again? I would like to run this process > whenever there's an update of the ClamAV database. > > The command 'postsuper -r <ID>' requeues it to the second stage Postfix, > so that's no solution. > > Regards, Willy Janssen, University of Nijmegen, The Netherlands A random stab in the dark, but perhaps along the lines of;
mv /path/to/secondstage/outbound/deferred/message_id /path/to/firstage/maildrop/ The key is getting the file name from the queue ID. I suspect cleanup will do the housekeeping if the file is missing from deferred, but I expect there will be an easier and cleaner way to do this properly. I'm a well known, self confessed 'bodger'.
