My experience with SendGrid is not very good. Slow delivery, random halts on e-mails due to low activity on account, which I was not notified about, the list go

My experience with SendGrid is not very good. Slow delivery, random halts on e-mails due to low activity on account, which I was not notified about, the list goes on. They did update their UI recently which was a good step, but the other issues remain. I'm thinking about trying SES.