[wp-trac] [WordPress Trac] #59156: sanitize_email method should lowercase the given email

[WordPress Trac]

#59156: sanitize_email method should lowercase the given email
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 Reporter:  achchu93           |       Owner:  (none)
     Type:  enhancement        |      Status:  new
 Priority:  normal             |   Milestone:  Awaiting Review
Component:  Formatting         |     Version:  6.3
 Severity:  minor              |  Resolution:
 Keywords:  reporter-feedback  |     Focuses:
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Comment (by roytanck):

 As far as I know, Capitalization is allowed in email addresses. It is
 usually ignored (like WP does), but the official standard does not require
 email addresses to be lowercase.

 Since `sanitize_email` is intended to make sure an email address conforms
 to the standard, I do not believe it should convert the input to
 lowercase.

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Ticket URL: <https://core.trac.wordpress.org/ticket/59156#comment:3>
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