I recently started using Sendy.co (aff) to send emails. I was having trouble finding a good API wrapper for it. Spent more than five hours searching for one and ended up building one myself. I hope it helps.
🚀 GITHUB: ★ 82 ⑂ 19 →
This also happens to be my first composer package, so yay! 🎉
Feedback is more than welcomed at GitHub.