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24 id E8DC0C00E5; Tue, 13 Apr 2010 11:06:12 -0700 (PDT)
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25 From: Dirk Hohndel <hohndel@infradead.org>
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26 To: Carl Worth <cworth@cworth.org>, Sebastian Spaeth <Sebastian@SSpaeth.de>,
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27 notmuch@notmuchmail.org
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28 Subject: Re: [PATCH] Fix code extracting the MTA from Received: headers
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29 In-Reply-To: <87eiijl0cy.fsf@yoom.home.cworth.org>
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30 References: <m31verxaka.fsf@x200.gr8dns.org> <877hoil6i5.fsf@SSpaeth.de>
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31 <m3sk76geyj.fsf@x200.gr8dns.org> <87eiijl0cy.fsf@yoom.home.cworth.org>
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32 Date: Tue, 13 Apr 2010 11:06:12 -0700
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37 bombadil.infradead.org See http://www.infradead.org/rpr.html
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52 On Tue, 13 Apr 2010 10:37:49 -0700, Carl Worth <cworth@cworth.org> wrote:
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53 > On Thu, 08 Apr 2010 08:07:48 -0700, Dirk Hohndel <hohndel@infradead.org> wrote:
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54 > > Right now my plan is to do something like this:
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56 > > 1) look for my email address in To/Cc
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57 > > 2) look for my email in "for <email@add.res>" in Received headers
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58 > > 3) look for my email in X-Original-To
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59 > > 4) look for the domain of my email in Received headers (not just 1st)
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60 > > 5) punt and use default email address
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62 > > Does that sound sane?
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68 > > (and thanks for sending the headers - this really helps... can others
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69 > > for whom the current code or the logic mentioned above wouldn't work
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70 > > send their headers, too, please?)
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72 > I started using fetchmail many years ago and have never really needed to
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73 > switch. So I'm still using that, (but don't necessarily recommend it to
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76 > It seems to break the above since it delivers mail locally, so the first
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77 > headers I get are:
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79 > X-Original-To: cworth@localhost
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81 Easy to detect. I'll add that as an exclusion
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83 > Delivered-To: cworth@localhost
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84 > Received: from yoom.home.cworth.org (yoom.home.cworth.org [127.0.0.1])
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85 > by yoom.home.cworth.org (Postfix) with ESMTP id D391B5883A6
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86 > for <cworth@localhost>; Mon, 12 Apr 2010 09:11:18 -0700 (PDT)
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88 > Received: from 10.22.226.213 [10.22.226.213]
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89 > by yoom.home.cworth.org with IMAP (fetchmail-6.3.16)
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90 > for <cworth@localhost> (single-drop); Mon, 12 Apr 2010 09:11:18 -0700 (PDT)
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93 (he runs screaming out of the room)
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95 > And none of these are useful for your detection. Worse, the presence of
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96 > "cworth.org" in the above might throw your detection off before it could
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97 > find something useful like "intel.com" in a later Received header.
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99 I have some choice words for these headers...
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100 And an idea how to exclude these false positives as well... It's kind of
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101 a hack, but I'm thinking that in order for the "Received: ... by ..."
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102 part to be truly relevant to us, the from host should have a non-private
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105 Yes, I can envision within-your-own-network cases where none of the
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106 systems have a non-private email address... but then hopefully your last
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107 hop is correct... if not - your setup is even more screwed up than Carl's.
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109 > I'll send a complete message with full headers to you separately.
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113 > Perhaps I can just switch programs to transfer email and avoid this
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114 > problem. Anyone have a recommendation for something to transfer mail
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115 > From an imap server to the local matchine, (but *not* leaving it stored
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116 > on the imap server)[*]. I don't think offlineimap supports this mode
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119 Don't think so. I'm not going to comment on the usefulness of this mode
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126 Intel Open Source Technology Center
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projects / notmuch-archives.git / blob