What alternatives to Mandrill are there for working with APIs through JS?

Question

JavaScript

For a Js application running on the front, you need to attach a service for sending emails. Plain text will be sent, but it should be possible to specify both one addressee and several by passing an array of addresses. Interested in services with a free plan. In general, the mandrill suited me, but I don’t want to take the first one that came across. Who can advise something else? Having an existing addon for the ember would be a plus.

Answer 1

You can't send emails like that, directly through JS.
Burn your tokens and spambots will send hundreds of thousands of emails.
// EDIT
Mailgun is still there.