[Dovecot] Apple Mail/Tiger Bug came up on the pf mailing list. . .

[Sean Kamath]

Hi all,

Just FYI, this post showed up on the pf mailing list a couple of days  
ago:

Cc: pf at benzedrine.cx
From: Axel Rau <Axel.Rau at Chaos1.DE>
Subject: Re: mismatch on route through packet/byte counts
Date: Sun, 18 Feb 2007 14:37:56 +0100
To: Daniel Hartmeier <daniel at benzedrine.cx>
X-Mailer: Apple Mail (2.752.2)
Content-Transfer-Encoding: 8bit
X-MIME-Autoconverted: from quoted-printable to 8bit by  
insomnia.benzedrine.cx id l1IDc2fg029064
Sender: owner-pf at benzedrine.cx

Thank you, Daniel, for taking the time to analyze my traces
and to explain the problem so perfect, that even non-net-developers,
like I, can understand it. (-;)

 >
 > This looks like a bug in the client's TCP/IP stack, and how to fix it
 > depends on the client's OS. IMO, the RST is invalid, and pf is
 > right in
 > blocking it.
The OS is Darwin 8.8 / Mac OS X 10.4.8, a 4.4BSD descendant and
the relevant source may be in netinet/tcp_output.c, found here
   http://www.opensource.apple.com/darwinsource/10.4.8.ppc/xnu-792.12.6

Good news is that your diagnosis could bring us forward to resolve
a long running painful bug filed against  Mail.app, the Apple email
client.

If you agree, I would like to add your diagnosis to my open bug
report and
cross-post the  mail on the Darwin Developers list, before filing a new
bug against Darwin.

Axel
---------------------------------------------------------------------
Axel Rau, ☀Frankfurt , Germany                       +49 69 9514 18 0