# Acceptable Use Policy

What you can run on a Rack4 server, and what gets a server suspended.

This policy applies to every Rack4 service. It is part of our [Terms of Service](https://rack4.io/terms). You may use your server for anything lawful that is not listed below.

## Not allowed

- Spam, unsolicited bulk email, and hosting content advertised by spam.
- Port scanning, brute-force attempts, exploiting vulnerabilities, and attacking any network or service.
- Denial-of-service attacks, botnet command and control, and stressers or booters.
- Malware, phishing, and fraud.
- Illegal content, including material that infringes copyright.
- Cryptocurrency mining.
- Running open proxies, or reselling proxy or VPN service to others.
- Tor exit nodes. Non-exit Tor relays are allowed.

## Email

Outbound port 25 is blocked by default to protect our IP reputation. If you run a legitimate mail server, [open a support ticket](https://my.rack4.io/support/new); we review it and open port 25 for that server. [Sending email: port 25](https://rack4.io/help/open-port-25) lists what to set up first.

## Enforcement

If we receive an abuse report or see a breach, we may warn you or suspend the service. Attacks, illegal content and anything putting our network at risk are suspended immediately. Accounts suspended for abuse are not eligible for the money-back guarantee.

## Reporting abuse

Report abuse to [abuse@rack4.io](mailto:abuse@rack4.io) with the IP address, the time and your evidence.