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<p class="MsoNormal">David, good article.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">A couple of excerpts … <o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><b>“Just send them an email already<o:p></o:p></b></p>
<p class="MsoNormal">No, I’m not joking. Just send your users an email. The activation email is a practice that’s been in use for years…”<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">“If you really, really want to make sure people are typing in an actual email address, just use the /@/ regular expression and call it done. If that makes you nervous, then check for the dot too: /.+@.+\..+/i. Anything more is overkill.”<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">-Dennis<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal" style="margin-left:.5in"><b><span style="font-size:12.0pt;color:black">From:
</span></b><span style="font-size:12.0pt;color:black"><ua-discuss-bounces@icann.org> on behalf of David Conrad <david.conrad@icann.org><br>
<b>Date: </b>Tuesday, September 12, 2017 at 2:52 PM<br>
<b>To: </b>Don Hollander <don.hollander@icann.org><br>
<b>Cc: </b>"UA-discuss@icann.org" <ua-discuss@icann.org><br>
<b>Subject: </b>[EXTERNAL] Re: [UA-discuss] Regular Expression<o:p></o:p></span></p>
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<p class="MsoNormal" style="margin-left:.5in"><o:p> </o:p></p>
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<p class="MsoNormal" style="margin-left:.5in">Don,<o:p></o:p></p>
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<p class="MsoNormal" style="margin-left:.5in"><o:p> </o:p></p>
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<p class="MsoNormal" style="margin-left:.5in">Perhaps also pointing people at <a href="https://davidcel.is/posts/stop-validating-email-addresses-with-regex/?">https://davidcel.is/posts/stop-validating-email-addresses-with-regex/?</a><o:p></o:p></p>
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<p class="MsoNormal" style="margin-left:.5in"><o:p> </o:p></p>
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<p class="MsoNormal" style="margin-left:.5in">Regards,<o:p></o:p></p>
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<p class="MsoNormal" style="margin-left:.5in">-drc<o:p></o:p></p>
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<p class="MsoNormal" style="margin-left:.5in"><o:p> </o:p></p>
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<p class="MsoNormal" style="margin-left:.5in">On Sep 12, 2017, at 11:44 AM, Don Hollander <<a href="mailto:don.hollander@icann.org">don.hollander@icann.org</a>> wrote:<o:p></o:p></p>
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<p class="MsoNormal" style="margin-left:.5in"><o:p> </o:p></p>
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<p class="MsoNormal" style="margin-left:.5in">Please note that this is a Geeky post - so carry on if that’s not you.<o:p></o:p></p>
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<p class="MsoNormal" style="margin-left:.5in"><o:p> </o:p></p>
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<p class="MsoNormal" style="margin-left:.5in"><o:p> </o:p></p>
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<p class="MsoNormal" style="margin-left:.5in">Email validation is an area where many websites fall short as we found in our study on Website UA Readiness (nearing publication)<o:p></o:p></p>
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<p class="MsoNormal" style="margin-left:.5in"><o:p> </o:p></p>
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<p class="MsoNormal" style="margin-left:.5in">The technologies behind these websites generally use a Regular Expression as their first line of defence against rubbish data. The issue is that most of these RegExs are overly restrictive.<o:p></o:p></p>
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<p class="MsoNormal" style="margin-left:.5in"><o:p> </o:p></p>
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<p class="MsoNormal" style="margin-left:.5in">As an appendix to the Website review, we looked at some of the technologies behind the websites to see if there were common denominators for good and bad experiences.<o:p></o:p></p>
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<p class="MsoNormal" style="margin-left:.5in"><o:p> </o:p></p>
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<p class="MsoNormal" style="margin-left:.5in">One RegEx has stood out as being simple and correct. I’d like the UASG to consider recommending this in our documentation. Toward that end, this thread is for discussion.<o:p></o:p></p>
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<p class="MsoNormal" style="margin-left:.5in"><o:p> </o:p></p>
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<p class="MsoNormal" align="center" style="margin-left:.5in;text-align:center"><span style="font-family:"Helvetica Neue",sans-serif;color:#454545">/^.+@(?:[^.]+\.)+(?:[^.]{2,})$<o:p></o:p></span></p>
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<p class="MsoNormal" style="margin-left:.5in"><span style="font-family:"Helvetica Neue",sans-serif;color:#454545"><o:p> </o:p></span></p>
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<p class="MsoNormal" style="margin-left:.5in"><span style="font-family:"Helvetica Neue",sans-serif;color:#454545"><o:p> </o:p></span></p>
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<p class="MsoNormal" style="margin-left:.5in"><span style="font-family:"Helvetica Neue",sans-serif;color:#454545">Regular expression check in Javascript. This accepts any Unicode characters, only insisting that the domain must have more than one label and the
TLD is 2 characters or longer. <o:p></o:p></span></p>
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<p class="MsoNormal" style="margin-left:.5in"><span style="font-family:"Helvetica Neue",sans-serif;color:#454545"><o:p> </o:p></span></p>
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<p class="MsoNormal" style="margin-left:.5in"><span style="font-family:"Helvetica Neue",sans-serif;color:#454545">Your thoughts?<o:p></o:p></span></p>
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<p class="MsoNormal" style="margin-left:.5in"><o:p> </o:p></p>
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<p class="MsoNormal" style="margin-left:.5in">Don Hollander<o:p></o:p></p>
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<p class="MsoNormal" style="margin-left:.5in">Universal Acceptance Steering Group<o:p></o:p></p>
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<p class="MsoNormal" style="margin-left:.5in">Skype: don_hollander<o:p></o:p></p>
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<p class="MsoNormal" style="margin-left:.5in"><o:p> </o:p></p>
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<p class="MsoNormal" style="margin-left:.5in"><o:p> </o:p></p>
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<p class="MsoNormal" style="margin-left:.5in"><o:p> </o:p></p>
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<p class="MsoNormal" style="margin-left:.5in"><o:p> </o:p></p>
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