# Billing fields and is disposable email as input parameters for custom rules

_April 27, 2020_

> **⚠️ Warning**
>
> This release note is more than two years old and may no longer reflect
> current behavior. View the
> [latest release notes](/minfraud/release-notes/).

We have released additional input parameters for use with custom rules.
Customers of
[minFraud Score, minFraud Insights, and minFraud Factors](/minfraud) can now use
the following inputs to serve as the basis when creating a custom rule:

- `/billing/address` – The first line of the user's billing address.
- `/billing/address_2` – The second line of the user's billing address.
- `/email/is_disposable` – This field is true if MaxMind believes that the email
  address is from a disposable email provider. It is false if the address is not
  from a known disposable email provider.