Hi Chris,

Have you also considered a traditional REST API connection to A2P SMS providers Vs. free email gateways as a means of getting text messages into and from SAS. Granted there is a cost to sending SMS in this capacity however commercially deployed applications will generally need a level of functionality and reliability that the email gateways do not provide. It's a bit self serving but traditional REST integrations to 3rd party providers allow for 2-way communications, message status/delivery receipts, click analysis, etc., and most importantly SLAs and compliance. Commercial services such critical alerts, one-time passcodes and customer engagement will generally require the uptime guarantees and accountability provided by these types of platform providers.

Best,
Ben