I see that AcyMailing adds the following lines in the source of backend pages too (pages of other components):
if(typeof acymailingModule == 'undefined'){
var acymailingModule = [];
}
acymailingModule['emailRegex'] = /[a-z0-9!#$%&\'+\/=?_{|}~-]+(?:\.[a-z0-9!#$%&\'*+\/=?^_{|}-]+)@([a-z0-9-]+.)+[a-z0-9]{2,20}$/i;
acymailingModule['NAMECAPTION'] = '(...)';
acymailingModule['NAME_MISSING'] = '(...)';
acymailingModule['EMAILCAPTION'] = '(...)';
acymailingModule['VALID_EMAIL'] = '(...)';
acymailingModule['ACCEPT_TERMS'] = '(...)';
acymailingModule['CAPTCHA_MISSING'] = '(...)';
acymailingModule['NO_LIST_SELECTED'] = '(...)';
acymailingModule['level'] = '(...)';
acymailingModule['reqFieldsformAcymailing66021'] = Array('html');
acymailingModule['validFieldsformAcymailing66021'] = Array('(...)');
acymailingModule['excludeValuesformAcymailing66021'] = [];
acymailingModule['excludeValuesformAcymailing66021']['name'] = '(...)';
acymailingModule['excludeValuesformAcymailing66021']['email'] = '(...)';
