# MailGate
Source: https://docs.infraista.com/en/email/mailgate



**MailGate** sends email from your apps (order confirmations, password resets, notifications) through
our SMTP relay. You verify the domains you send from, create an SMTP login per app, and point your app
at MailGate. You only pay per email sent, with no monthly fee.

<Shot name="email/mailgate/overview" alt="A MailGate service's overview: emails sent this month, free emails left, cost so far, activity, top sending domains and SMTP settings" />

## How it's organized [#how-its-organized]

* A **service** is one app or environment, for example "Shop – production". Each has its own sending
  domains, SMTP logins, rules and logs.
* A **sending domain** is a domain your app sends From. MailGate only accepts mail from domains you've
  verified.
* An **SMTP login** is the username and password one app uses to send.

## Get started [#get-started]

1. [Create a MailGate service](/en/email/mailgate/create-a-mailgate-service).
2. [Verify your sending domain](/en/email/mailgate/verify-a-sending-domain).
3. [Create an SMTP login](/en/email/mailgate/create-an-smtp-login) and
   [connect your app](/en/email/mailgate/connect-your-app).

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