27452 2014-11-27 07:48:45 +0000 Fix definition of valid email address 2014-12-01 05:39:10 +0000 1 1 1 Unclassified WHATWG HTML unspecified Other other RESOLVED DUPLICATE 15489 P3 normal Unsorted 1 mark ian ian mike contributor oldest_to_newest 115594 0 mark 2014-11-27 07:48:45 +0000 https://html.spec.whatwg.org/multipage/forms.html#valid-e-mail-address does not take into account EAI, or IDNA. It should be something like: email = local-part "@" host local-part = 1*atext2 *("." 1*atext2) host = < as defined in https://url.spec.whatwg.org/#host-parsing > atext2 = atext | utext atext = < as defined in http://tools.ietf.org/html/rfc5322#section-3.2.3 > utext = XID_Start 1*XID_Continue XID_Start = < as defined in http://www.unicode.org/reports/tr31 > XID_Continue = < as defined in http://www.unicode.org/reports/tr31 > Additional conditions: atext2 must be in NFC format, as defined in http://www.unicode.org/reports/tr15 Notes: * for local-part, see dot-atom-text in rfc5322 section 3.2.3 * the above doesn't provide for quoted email addresses; the syntax would have to be enhanced to allow for those. * the restriction to NFC is recommended in http://tools.ietf.org/html/rfc6530#section-10.1, but not required there. * the restriction to a Unicode identifier is not in rfc6530, but helps to prevent bizarre email addresses. 115720 1 ian 2014-12-01 05:39:10 +0000 *** This bug has been marked as a duplicate of bug 15489 ***