此类功能不是开箱即用的，您需要根据需要自定义ExtendedEmailPublisher。

        MimeMessage msg = createMail(mailType, build, listener);
        Address[] allRecipients = msg.getAllRecipients();
        if (allRecipients != null) {
            StringBuilder buf = new StringBuilder("Sending email to:");
            for (Address a : allRecipients) {
                buf.append(' ').append(a);
            }
            listener.getLogger().println(buf);
            Transport.send(msg);
            if (build.getAction(MailMessageIdAction.class) == null) {
                build.addAction(new MailMessageIdAction(msg.getMessageID()));
            }
            return true;
        }

您可以获取用于签名/加密的收件人和电子邮件，并最终致电Transport.send（msg）。