This script will select all `delete` checkbox for mail requests in mailman2

click_delete_all_admin_mail_requests_mailman2.js

function parse(str) {
    var args = [].slice.call(arguments, 1),
        i = 0;

    return str.replace(/%s/g, () => args[i++]);
}

function getElementByXpath(path) {
  return document.evaluate(path, document, null, XPathResult.FIRST_ORDERED_NODE_TYPE, null).singleNodeValue;
}

var i;
for (i = 2; i < 999 ; i++) {
	xpath1 = parse('/html/body/form/table/tbody/tr[%s]/td/table/tbody/tr[2]/td[1]/table/tbody/tr[2]/td/table/tbody/tr[2]/td[4]/center/input', i)
	xpath2 = parse('/html/body/form/table/tbody/tr[%s]/td/table/tbody/tr[2]/td[1]/table/tbody/tr[6]/td/label', i)
	getElementByXpath(xpath1).click()
	getElementByXpath(xpath2).click()
}