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<?php var_dump(filter_var('atrücz@i.biz', FILTER_VALIDATE_EMAIL)); var_dump(filter_var('x@y.co', FILTER_VALIDATE_EMAIL)); var_dump(filter_var('x@ysdfco', FILTER_VALIDATE_EMAIL)); var_dump(preg_match( "/^[a-z0-9._\-ÄÖÜäöüß\+]+@[A-Z0-9.\-ÄÖÜäöü]{2,63}\.[A-Z]{2,6}$/ui", 'atracz@i.biz' ));
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