Increase or remove the limit of Bulk replies

We have thousands of customers and send hundreds of emails a day. When one of our products has a bug and customers write in, we link those conversations together so we can respond to all of them when the bug is resolved. We need a more efficient way to respond than being limited to 50 emails at a time via a bulk reply. We use Google as our ESP and their limit is 2000. Could we remove the Front limit and just rely on the ESP?