The free tier Remails offers is pretty generous in my opinion (3k a month) and I really like when the people making a service make blog posts like this. However having the next tier up (100k a month) start at €100 is a no go for me. It’s not that I think the price is bad, it’s that for my service I expect to send only 30k per month by the end of the year. Having a smaller capacity tier would be great for small but not tiny projects.