From mboxrd@z Thu Jan  1 00:00:00 1970
From: marka@pobox.com (Mark Alexander)
Date: Mon, 4 May 2009 13:24:10 -0400
Subject: [sup-talk] Possible problem with maildir ID generation
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On Mon, May 4, 2009 at 12:52 PM, Marc Hartstein
<marc.hartstein at alum.vassar.edu> wrote:
> On Mon, May 04, 2009 at 09:10:23AM -0700, William Morgan wrote:
>> I think the collisions we are seeing are due to timestamp granularity.
>> A little research suggests that e.g. ext2fs ctimes are 1-second
>> granular. It seems quite easy to get more than one email per second.
>
> It does, but as I mentioned somewhere in that email, the reference
> implementation of maildir (qmail) says that it will only deliver one
> message per second. ?However, I definitely concede that relying on this
> behavior would be setting things up for something to go wrong down the
> line.

Just a data point: in my setup (postfix+procmail) I'm seeing multiple messages
being delivered to the same maildir in the same second.  That was what
motivated my patch.