Did anyone ever find the time to put this together?
We’ve been using Zoho Transmail / Zeptomail for a couple of years but as our community scales, so do our Zoho costs.
We’re sending around 120,000 emails per month and now spend more money per month on sending email than we do on hosting over a million hires photos on AWS S3 - which is just crazy 
I seem to recall trying SES a while back but had problems with people replying to it (we use gmail to handle incoming replies to topics via email). I can’t remember exactly what that reply-via-email issue was now, but I seem to remember SES being a non-starter because of it.