Is there any way to change the delivery speed (50 message that are processed at one time) or other parameters. We have a high capacity smpt service that can handle much larger bursts.– but to send close to 190,000 emails, which we do daily, it seems that it will take us over 3 days with the 50 at a time limit. Over all, it takes about 2.5 to 3 mins per 50 to be processed. Our older system, which is no longer supported, we could send in about 4hrs..