Postfix message duplication - again!

[Tony Finch]

Drew Marshall <drew at THEMARSHALLS.CO.UK> wrote:
>I have read many threads on both the MailScanner mailing list and the
>Postfix groups about this problem but haven't yet seen a solution. I
>guess the first question is, is there a solution?

I suspect there is a problem with file locking lurking somewhere. The
Unix locking system calls are really shit -- if you open and close a file
that you already have open and locked then you lose the lock, even though
(from the point of view of your program) the open/close has nothing to
do with the locked open!

Tony.
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