There he will find the translation that the key is not equal

/* class Zend_Validate_EmailAddress File EmailAddress.php */ self::INVALID_FORMAT => "'%value%' is not a valid email address in the basic format local-part@hostname",

/* * File Zend_Validate.php */ "'%value%' is no valid email address in the basic format local-part@hostname" => "'%value%' is no valid email address in the basic format local-part@hostname"

/* * Solution */

"'%value%' is not a valid email address in the basic format local-part@hostname"