[TYPO3-dev] Validate e-mail in backend when adding a record

[Stephan Großberndt]

I think it would be accepted, but it depends on how it looks like

The question is how good the client side validation has to be. email 
addresses are VERY complex, so the best choice in PHP is 
http://php.net/manual/de/function.filter-var.php FILTER_VALIDATE_EMAIL. 
Either js should check it via AJAX using the php option or replicate the 
php filter or only have a very basic JS check and do the real one server 
side.