RFC / DNS Validation

Pass one or more modes after disposable_email:

'email' => ['required', 'disposable_email:rfc'];
'email' => ['required', 'disposable_email:dns'];
'email' => ['required', 'disposable_email:rfc,dns'];

Available modes:

Mode	Check
rfc	Validate against supported email RFCs
strict	Fail on RFC warnings
dns	Require a valid MX record
spoof	Reject deceptive Unicode addresses
filter	Use PHP filter_var validation
filter_unicode	Use Unicode-aware filter_var validation

Any supported modes may be comma-separated:

'email' => ['required', 'disposable_email:rfc,dns,spoof'];

Rule helpers accept the same modes:

use Disposable;

'email' => ['required', Disposable::rule('rfc', 'dns')];

Plain disposable_email keeps the original domain-only behavior. DNS checks are opt-in because they perform DNS lookups. Laravel's dns and spoof validators require PHP's intl extension.

Whitelist entries only bypass disposable-domain blocking; they do not bypass these format or DNS checks.