Delivering mail services on the Internet is hard. Really hard. It's even harder to do correctly, and harder yet to prevent abuse. It is quite likely that you're going to end up in a game of whack-a-mole with abuse issues, and that's going to be your primary fight. The moment somebody abuses the system, your IP gets RBL'd or DNSBL'd and it's game over until it's fixed.
It's a cool product that has a lot of great legitimate uses, no doubt. I just hope you've baked in security at the core, and that you have a contingency plan for when your IP's get blacklisted. I fear for your sanity, but wish you the best!
It's a cool product that has a lot of great legitimate uses, no doubt. I just hope you've baked in security at the core, and that you have a contingency plan for when your IP's get blacklisted. I fear for your sanity, but wish you the best!