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Improvement
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Resolution: Fixed
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Major
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1.9.7, 2.3.3, 3.7
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MOODLE_19_STABLE, MOODLE_23_STABLE, MOODLE_37_STABLE
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MOODLE_37_STABLE
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arjen_validate_email
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http://en.wikipedia.org/wiki/E-mail_address
the current regular expression for valid_email function (lib/weblib.php) does not validate the domain name accordingly.
I proposed for modifying the regular expression so it matches the RFC specification.
proposed new regular expression:
preg_match('#^([^\.]([\!\#\$\%\&\'\*\+\-\/=\?\^\_`\{\|\}\~a-z0-9]+\.)*' .
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'[\!\#\$\%\&\'\*\+\-\/=\?\^\_`\{\|\}\~a-z0-9]+)' .
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'@' .
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'(([a-z0-9\_\-]{1,64}\.)*[a-z0-9\_\-]{1,64})$#i',
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$address);
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