What email providers are case sensitive? [on hold]

Posted by Thanatos on Programmers See other posts from Programmers or by Thanatos
Published on 2014-06-09T23:11:33Z Indexed on 2014/06/10 3:41 UTC
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email

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case-insensitivity

According to RFC 5321, the local-part of email addresses is case-sensitive. However, most providers that I know of (e.g., GMail) are not case-sensitive. (It's actually more complex than that: GMail ignores .s in emails as well.)

Is there a list, or source, of the various rules, including case-sensitivity, for various major email providers? Is there a large-ish email provider than has case-sensitive email addresses?

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