Yeah, you are probably not the target market for this lovely hobby project. Email service reliability matters, and is a very difficult problem at scale. This is why my team has been working on a production-ready, enterprise version of a unified email API for about a year now, that's free for up to 100k messages/month, and has functionality that you couldn't easily build yourself, like auto-failover over multiple providers, full-text elasticsearch of your email history/logs, and a non-technical interface for your customer support team to easily view your recipients email history.

Send me a tweet @flutemail if you're interested, I'll let you know when it's ready (should be in about a month).