I thought postale.io was free -- it must have been when I signed up because I'm not paying for it. It isn't free anymore so it is not an answer to your question, but it is fairly cheap for the base plan:…
I thought postale.io was free -- it must have been when I signed up because I'm not paying for it. It isn't free anymore so it is not an answer to your question, but it is fairly cheap for the base plan:…