You may want to check out https://purelymail.com https://purelymail.com who are pretty close to your target pricing. I've been using them since forever and have

You may want to check out https://purelymail.com https://purelymail.com who are pretty close to your target pricing. I've been using them since forever and have no reasons to switch but it is always great to see more players in the niche!