Re: [dane] case sensitivity and draft-ietf-dane-smime / draft-wouters-dane-openpgp
"Olle E. Johansson" <oej@edvina.net> Mon, 09 September 2013 18:43 UTC
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From: "Olle E. Johansson" <oej@edvina.net>
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Date: Mon, 09 Sep 2013 20:43:11 +0200
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References: <alpine.LFD.2.10.1309091040120.14065@bofh.nohats.ca> <20130909151646.GM29796@mournblade.imrryr.org>
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Subject: Re: [dane] case sensitivity and draft-ietf-dane-smime / draft-wouters-dane-openpgp
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9 sep 2013 kl. 17:16 skrev Viktor Dukhovni <viktor1dane@dukhovni.org>: > On Mon, Sep 09, 2013 at 10:52:26AM -0400, Paul Wouters wrote: > >> Mail servers and mail clients do not treat email addresses as >> case-insensitive. When encoding an LHS with base32, the case matters. >> Using the wrong case will cause you to not find the SMIMEA / OPENPGPKEY >> record. > > This is not accurate. While domain part of an email address is > case-insensitive, the case-sensitivity of the local-part is a > local matter. SMTP relays MUST NOT change the case of the local > part of envelope addresses. On arrival at the destination domain, > that domain's mail system may choose to treat local-parts case > insensitively, but remote systems must not rely on this. > > Therefore, <Paul@example.com> and <paul@example.com> are a-priori > distinct addresses except perhaps in the hands of the MTAs that > handle example.com mail. > > [ The fact that most systems are in practice case-insensitive is not > sufficient to invalidate the right of some to be case sensitive as > they see fit. ] Just for the record - in SIP the username part is case-sensitive. /O
- [dane] case sensitivity and draft-ietf-dane-smime… Paul Wouters
- Re: [dane] case sensitivity and draft-ietf-dane-s… Viktor Dukhovni
- Re: [dane] case sensitivity and draft-ietf-dane-s… Francis Dupont
- Re: [dane] case sensitivity and draft-ietf-dane-s… Jakob Schlyter
- Re: [dane] case sensitivity and draft-ietf-dane-s… Paul Wouters
- Re: [dane] case sensitivity and draft-ietf-dane-s… Peter Saint-Andre
- Re: [dane] case sensitivity and draft-ietf-dane-s… Olle E. Johansson
- Re: [dane] case sensitivity and draft-ietf-dane-s… Paul Hoffman
- Re: [dane] case sensitivity and draft-ietf-dane-s… Paul Wouters
- Re: [dane] case sensitivity and draft-ietf-dane-s… Dickson, Brian
- Re: [dane] case sensitivity and draft-ietf-dane-s… Paul Hoffman
- Re: [dane] case sensitivity and draft-ietf-dane-s… Martin Rex