Most of the plain ESPs like AWS SES, or mailgun accomplish that same reliability for comparatively peanuts.
The main thing you lose with them are UX for sending newsletters, handling bounces on those lists etc. that's what sendy covers.
The main thing you lose with them are UX for sending newsletters, handling bounces on those lists etc. that's what sendy covers.
I found it incredibly frustrating that there was functionality that should have been easy for SES to implement, and that pretty much everyone will need at some point, but they don't really make it easy to add on after the fact.
SES uses SNS for bounces, complaints etc. So _really_ you need a http(s) endpoint that receives these notifications and can act on them in a way that you'd like. (Unsubscribing from a mailing list, analytics, etc).
I've used phplist feeding to AWS SES for many years now without issues.