I tried them a few years ago, everything was great except the email servers in the free tier had terrible reputation and most of what I sent was rejected by the

I tried them a few years ago, everything was great except the email servers in the free tier had terrible reputation and most of what I sent was rejected by the receiving side. I guess that's to be expected, free tiers of any email services are going to be horribly abused. Hopefully the paid service is better.