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From "Chris Lee (JIRA)" <>
Subject [jira] Updated: (VALIDATOR-273) EmailValidator does not support mailboxes at TLDs
Date Sun, 13 Jun 2010 05:50:16 GMT


Chris Lee updated VALIDATOR-273:

    Attachment: commons-validator_allow-tld-domains.patch

Added an additional check in EmailValidator to also pass if domain-part is a valid TLD, not
just if it's a valid domain as judged by DomainValidator.

This could also be accomplished by modifying DomainValidator to say raw TLDs are valid (change
a + to a * in the regex), and all unit tests pass when I did that too, but I figured this
was less likely to have unintended consequences.

> EmailValidator does not support mailboxes at TLDs
> -------------------------------------------------
>                 Key: VALIDATOR-273
>                 URL:
>             Project: Commons Validator
>          Issue Type: Bug
>          Components: Framework
>    Affects Versions: 1.3.1 Release
>            Reporter: Marcos Sanz
>         Attachments: commons-validator_allow-tld-domains.patch
> According to RFC 5321 and 5322, mailboxes at top level domain names are permitted. Thus,
the syntax localpart@tld is valid. Explicit text to this topic can be found in RFC 5321:
> 2.3.5.  Domain Names
>    A domain name (or often just a "domain") consists of one or more
>    components, separated by dots if more than one appears.  In the case
>    of a top-level domain used by itself in an email address, a single
>    string is used without any dots.
> Accordingly, the code
> 		EmailValidator ev = EmailValidator.getInstance();
> 		System.out.println(ev.isValid("m@de"));
> should output "true".

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