My first thought: How would this service handle 100k forged emails sent from china? The recurring payments is okay if you set maybe a daily max, example: charge me indefinitely but no more than a dollar a day. If my daily quota is hit then cut that email address off until the next day.
Do they (or a similar provider) already offer a better solution? I didn't find anything in their docs but I might have overlooked it.
We use a combination of algorithms and humans to determine "unusual" activity (not just spam or forged emails) and act accordingly.
We're even proactive about finding customers who break into new send volume thresholds and offer them discounts. We'd much rather have high quality senders in our network for a LONG time than just keep the highest billing rate on autopilot.
Do they (or a similar provider) already offer a better solution? I didn't find anything in their docs but I might have overlooked it.