Christopher Schultz created VALIDATOR-315:
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Summary: Email validator does not properly validate symbolic
domain names
Key: VALIDATOR-315
URL: https://issues.apache.org/jira/browse/VALIDATOR-315
Project: Commons Validator
Issue Type: Bug
Affects Versions: 1.4.0 Release
Reporter: Christopher Schultz
Priority: Critical
This returns true:
EmailValidator.getInstance().isValid("me@at&t.net")
...when IMO it should not. If the portion of the address after the @ is
symbolic, then it should be validated like a host name which may only contain
[A-Za-z0-9-\.] and has a few other requirements as well (no leading or trailing
hyphen or empty 'label', max 63 characters per label, max 255 characters total
length).
I'm less interested in the limits, etc. but an '&' is not valid in a hostname
and it would be nice to fail under those conditions. Use of IDN should pretty
much allow any letter or number (\p{Alnum}).
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