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I recently had to exemplify a list of e-mail addresses which I did by double quoting the original address and append @example.com.

For example

[email protected]

I converted to

"[email protected]"@example.com

To my big surprise I found that the resulting e-mail address validates as invalid in the HTML5 input=email field validation, i.e. 

<input name='foo' type='email' required='required' />

Does this not make the build in HTML5 validation of e-mail addresses completely useless as it block potential valid e-mail addresses, or am I missing something here?

Muleskinner
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  • You can [provide a `pattern`](http://stackoverflow.com/q/19605773/11683) that [suits you](http://stackoverflow.com/a/27000682/11683). – GSerg Aug 17 '15 at 08:45

1 Answers1

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HTML5 In Built email validation provides very basic validation. If you want to cover each and every scenario consider using a library or handle using regex.

atinder
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  • But a "basic validation" should not mark valid input as invalid IMHO. A basic validation would be to test for "@" for example. – Muleskinner Aug 17 '15 at 08:42