That's correct. Here is a quote from the meteor blog announcing this feature: " But there's more than just an API. We've partnered with Rackspace's Mailgun team so that every app deployed with $ meteor deploy can send email right away, without any annoying configuration process. These automatic accounts are capped at 200 messages a day, but of course you're not tied to them. You can use any SMTP server (your own box, a paid Mailgun account, or anything else) just by setting the $MAIL_URL environment variables, whether you're using our deploy servers or running your own bundles."