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</o:shapelayout></xml><![endif]--></head><body lang=DE link="#0563C1" vlink="#954F72"><div class=WordSection1><p class=MsoNormal><span style='color:#1F497D;mso-fareast-language:EN-US'>Hey Stephen,<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D;mso-fareast-language:EN-US'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D;mso-fareast-language:EN-US'>CAA checking does only make any sense in the context of issuing s/mime certificates, if a CA issues s/mime certificates for the entire domain (e.g. a large company) without checking the ownership of every single email address.<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D;mso-fareast-language:EN-US'>In my opinion it is not the descision of the mail provider from which CA the owner of a mail address wants to obtain s/mime certificates. <o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D;mso-fareast-language:EN-US'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D;mso-fareast-language:EN-US'>Kind regards.<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D;mso-fareast-language:EN-US'>Andreas<o:p></o:p></span></p><p class=MsoNormal><span style='mso-fareast-language:EN-US'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=MsoNormal><b>Von:</b> Smcwg-public <smcwg-public-bounces@cabforum.org> <b>Im Auftrag von </b>Stephen Davidson via Smcwg-public<br><b>Gesendet:</b> Samstag, 24. Oktober 2020 17:22<br><b>An:</b> smcwg-public@cabforum.org<br><b>Betreff:</b> [Smcwg-public] CAA and S/MIME<o:p></o:p></p></div></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><span lang=EN-US>Hello:<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>The topic of Certification Authority Authorisation (CAA) has arisen a number of times in relation to the evolving S/MIME Baseline.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>I highlight a discussion on that subject related to the Mozilla policy: <a href="https://github.com/mozilla/pkipolicy/issues/135">https://github.com/mozilla/pkipolicy/issues/135</a><o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>A significant number of email providers – such as gmail.com, outlook.com, protonmail.com, and others – have CAA records.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><br>Questions for us to address later in our discussions:<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal style='margin-left:36.0pt;text-indent:-18.0pt;mso-list:l0 level1 lfo3'><![if !supportLists]><span lang=EN-US><span style='mso-list:Ignore'>-<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span lang=EN-US>Is CAA a desired requirement of the S/MIME Baseline?<o:p></o:p></span></p><p class=MsoNormal style='margin-left:36.0pt;text-indent:-18.0pt;mso-list:l0 level1 lfo3'><![if !supportLists]><span lang=EN-US><span style='mso-list:Ignore'>-<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span lang=EN-US>Should the S/MIME Baseline rely upon the existing requirements stated in the TLS BR, or is the S/MIME use case sufficiently different to merit a separate CAA tag?<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>Regards, Stephen<o:p></o:p></span></p></div></body></html>