Postfix and duplicate mails

[Julian Field]

At 19:56 23/09/2003, you wrote:
>I put this in place and starting getting errors that
>/var/spool/postfix/incoming/saved did not exist.  I created this
>directory owned by postfix and messages started queuing there but
>weren't delivered.  Was "/saved" added to the definition of $tfile for
>testing and needs to be removed (as in the previous 1.1.2.17 version of
>PFDiskStore.pm file) or am I missing something?

My /var/spool/postfix has a /saved directory in it. I thought I would try
building the message there and then moving it to the incoming queue.

>BTW, the timestamp on the file you included (version 1.1.2.18) is
>2003/07/30 and the only differences from version 1.1.2.17 (2003/06/13)
>seem to affect timestamps on files in the outgoing postfix instance.

Ignore the file id line in the actual file. The date is 2003/09/23 in the
zip file, I just checked it by reading the zip file in my list posting.
There is an undef and a couple of other things.

>The problem seems to be that MailScanner is grabbing incomplete (still
>in use) queue files from the incoming instance.  Or maybe not, it
>happens so rarely that it's hard to track down.

I have tried very hard to not only make sure the write is complete (which
it was before) but that the file is 100% closed, flushed and unlocked
before being moved into the incoming queue.

>-----Original Message-----
>From: Julian Field [mailto:mailscanner at ECS.SOTON.AC.UK]
>Sent: Tuesday, September 23, 2003 2:56 AM
>To: MAILSCANNER at JISCMAIL.AC.UK
>Subject: Re: Postfix and duplicate mails
>
>
>Attached is an attempt to fix this problem. I would be interested your
>results as to whether it makes any difference at all.
>
>Don't forget to take a copy of your previous
>/usr/lib/MailScanner/MailScanner/PFDiskStore.pm before you copy this one
>into place!
>
>At 12:54 29/08/2003, you wrote:
> >On Fri, 29 Aug 2003 12:17:13 +0100, Keith Edmunds wrote:
> > > In my case they ARE on the same filesystem. I have logfiles, etc, if
>you
> > > want to see them (either on or off list).
> >
> >I've seen the same symptoms as Keith (one copy with headers only, one
> >with headers and body) very occasionally, notably when the system is
> >under heavier than normal load (e.g. when the backup MX feeds us a
> >huge backlog after our ADSL line has been down for a while). Incoming
> >and outgoing queues are on the same filesystem. I also see "skipped,
> >still being delivered" in the logs as described in thread on the
> >postfix list.
> >
> >This would seem to be a different problem to the one Wietse is
> >describing with queues on different filesystems.
> >
> >John.
> >
> >--
> >-- Over 2000 webcams from ski resorts around the world -
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--
Julian Field
www.MailScanner.info
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