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<div class="moz-cite-prefix">On 4/15/2019 9:46 AM, John Levine
wrote:<br>
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<blockquote type="cite"
cite="mid:20190415164656.461762011FE5CD@ary.qy">
<pre class="moz-quote-pre" wrap="">In article <a class="moz-txt-link-rfc2396E" href="mailto:09cbecda-324d-eb4d-bd45-fb4e64c71a72@ix.netcom.com"><09cbecda-324d-eb4d-bd45-fb4e64c71a72@ix.netcom.com></a> you write:
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<pre class="moz-quote-pre" wrap="">That's the real danger of understanding UA as "blind acceptance" vs.
universal support for well-behaved (if non-native) identifiers.
"Well-behaved" almost has to become more narrowly defined than the
"anything goes" or "any PVALID goes" from E-mail or domain name standards.
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<pre class="moz-quote-pre" wrap="">
Quite right. I wish I know where the bad idea came from that you're
supposed to accept every technically valid but illegible and
misleading IDN or e-mail address. It's never been true with ASCII
addresses and it's even less true with IDNs and UTF-8 mailboxes.
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<p><font face="Candara">How do we make sure that UA doesn't become
synonymous with "uncritical acceptance"?</font></p>
<p><font face="Candara">A./</font></p>
<p><font face="Candara"></font><br>
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