Prerequisites for Email

Hello everyone,

I am having a bit of trouble understanding what I need in order to send email using the email package. I am developing on localhost. I have tried creating a gmail account but most tutorials out there seem to tether their gmail to some sort of hosting service(?). I have access to an smtp host like in this Java example, but do not have any of the other credentials like password (from the Meteor Chef’s example):

process.env.MAIL_URL = "smtp://postmaster%40<your-mailgun-address>.mailgun.org:password@smtp.mailgun.org:587";

Can someone please explain what the prerequisites are to sending email through a meteor app? Thanks so much!