I send hundreds of thousands of emails using SES per day and haven't had any trouble. As long as you have DKIM set up correctly (and DMARC if you have a dedicat

I send hundreds of thousands of emails using SES per day and haven't had any trouble. As long as you have DKIM set up correctly (and DMARC if you have a dedicated transactional email domain) the deliverability is pretty high. When you reach a large enough daily volume you will need to provision a pair of dedicated IPs but they are only around $25/mo