wp-contact form 7 -- php

i don't know many information need this, nonetheless wp-contactform-7 hit form wordpress. default server response summary forms website. i have churned forms opposite server response messages any one.

how i emanate opposite server response messages any opposite form i emanate plugin?

following dash php formula plugin seems news messages hit form displays:

function message($status) {
    switch ($status) {
        box 'mail_sent_ok':
            relapse __('your summary sent successfully. thanks.', 'wpcf7');
        box 'mail_sent_ng':
            relapse __('failed send your message. greatfully try after hit executive way.', 'wpcf7');
        box 'validation_error':
            relapse __('validation errors occurred. greatfully endorse fields quarrel again.', 'wpcf7');
        box 'accept_terms':
            relapse __('please accept terms proceed.', 'wpcf7');
        box 'invalid_email':
            relapse __('email castle seems invalid.', 'wpcf7');
        box 'invalid_required':
            relapse __('please fill mandatory field.', 'wpcf7');
        box 'captcha_not_match':
            relapse __('your entered formula incorrect.', 'wpcf7');
    }
}

if adequate info following download record feeling during whole source code.