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<p class="MsoNormal"><span lang="EN-GB" style="mso-fareast-language:EN-US">Why?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="mso-fareast-language:EN-US">It’s an EAI issue more than anything else.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="mso-fareast-language:EN-US">If your email client or server can’t handle UTF-8 then doing the punycode conversion is unlikely to help<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="mso-fareast-language:EN-US">I’d also encourage RIPE NOT to force Latin characters only – the RIPE region covers multiple languages which are not Latin based and if anything it should be leading by example<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="mso-fareast-language:EN-US">More details on EAI and UA issues here:<o:p></o:p></span></p>
<p class="MsoNormal"><a href="https://uasg.tech/">https://uasg.tech/</a><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-GB" style="mso-fareast-language:EN-US">Regards<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="mso-fareast-language:EN-US">Michele<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span lang="EN-GB" style="color:black">--<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="color:black">Mr Michele Neylon<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="color:black">Blacknight Solutions<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="color:black">Hosting, Colocation & Domains<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="color:black">https://www.blacknight.com/<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="color:black">https://blacknight.blog/<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="color:black">Intl. +353 (0) 59 9183072<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="color:black">Direct Dial: +353 (0)59 9183090<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="color:black">Personal blog: https://michele.blog/<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="color:black">Some thoughts: https://ceo.hosting/
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="color:black">-------------------------------<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="color:black">Blacknight Internet Solutions Ltd, Unit 12A,Barrowside Business Park,Sleaty<o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-GB" style="color:black">Road,Graiguecullen,Carlow,R93 X265,Ireland Company No.: 370845</span><span lang="EN-GB" style="mso-fareast-language:EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:12.0pt;color:black">From: </span></b><span style="font-size:12.0pt;color:black">anti-abuse-wg <anti-abuse-wg-bounces@ripe.net> on behalf of David Guo via anti-abuse-wg <anti-abuse-wg@ripe.net><br>
<b>Reply to: </b>David Guo <david@xtom.com><br>
<b>Date: </b>Tuesday 19 November 2019 at 13:34<br>
<b>To: </b>Thomas Hungenberg <th@cert-bund.de>, "anti-abuse-wg@ripe.net" <anti-abuse-wg@ripe.net><br>
<b>Subject: </b>Re: [anti-abuse-wg] Non-ASCII characters in abuse-mailbox addresses<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Oh you already tried and it works. I suggest RIPE can convert the IDN domains to punnycode on database.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><b><span style="color:black">From:</span></b><span style="color:black"> David Guo <david@xtom.com><br>
<b>Sent:</b> Tuesday, November 19, 2019 2:32:54 PM<br>
<b>To:</b> Thomas Hungenberg <th@cert-bund.de>; anti-abuse-wg@ripe.net <anti-abuse-wg@ripe.net><br>
<b>Subject:</b> Re: [anti-abuse-wg] Non-ASCII characters in abuse-mailbox addresses</span>
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<p class="MsoNormal"> <o:p></o:p></p>
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<p class="MsoNormal">Did you try IDN / Punnycode converter?<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Try abuse@xn--zrich-kva.email ?<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><b><span style="color:black">From:</span></b><span style="color:black"> anti-abuse-wg <anti-abuse-wg-bounces@ripe.net> on behalf of Thomas Hungenberg <th@cert-bund.de><br>
<b>Sent:</b> Tuesday, November 19, 2019 2:27:13 PM<br>
<b>To:</b> anti-abuse-wg@ripe.net <anti-abuse-wg@ripe.net><br>
<b>Subject:</b> [anti-abuse-wg] Non-ASCII characters in abuse-mailbox addresses</span>
<o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt">Hi,<br>
<br>
some abuse contacts registered with RIPE use non-ascii characters with<br>
the abuse-mailbox addresses, e.g.<br>
<br>
% Abuse contact for '195.78.76.0 - 195.78.77.255' is 'abuse@zürich.email'<br>
<br>
However, the corresponding MTA does not support SMTPUTF8:<br>
<br>
7B579403C6: to=<abuse@zürich.email>,<br>
relay=mail.xn--zrich-kva.email[109.95.241.50]:25, delay=0.33,<br>
delays=0.01/0/0.32/0, dsn=5.6.7, status=bounced (SMTPUTF8 is required, but was<br>
not offered by host mail.xn--zrich-kva.email[109.95.241.50])<br>
<br>
(In this particular case, sending email to the IDNA representation of the<br>
email address <abuse@xn--zrich-kva.email> works.)<br>
<br>
In our experience, using umlauts and other non-ascii characters in<br>
(the host part of) email addresses still cause a lot of problems in general.<br>
Even if the recipient's MX supports SMTPUTF8 correctly, MTAs on the transport<br>
way may fail to handle SMTPUTF8 messages.<br>
<br>
To prevent such problems and make sure all abuse mailboxes can be addressed,<br>
I wonder if the values of abuse-mailbox attributes should be restricted to<br>
ASCII characters only.<br>
<br>
What do you think?<br>
<br>
<br>
- Thomas<br>
<br>
<o:p></o:p></p>
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