---
title: Blocking a specific guest from booking
description: "You can stop a specific guest from booking on your website by adding their email address or phone number to the guest blacklist at checkout. **Where to…"
url: "https://homerunner.io/docs/how-do-i-block-a-specific-guest-from-booking-on-my-website/"
updated: "2026-10-26"
category: Booking engine and checkout
---

# Blocking a specific guest from booking

You can stop a specific guest from booking on your website by adding their email address or phone number to the guest blacklist at checkout.

**Where to find it.** The blacklist is in **HomeRunner Settings** under **Reservations**, in the **Blacklist** section. It has one field for blacklisted email addresses and one for blacklisted phone numbers.

1. Open **HomeRunner Settings** and go to **Reservations**.
2. In the **Blacklist** section, use the email field, the phone field, or both.
3. Enter one value per line.

**Using wildcards.** Both fields support "*" wildcards. For example, "*@spam-domain.com" blocks a whole domain.

**Phone number formats.** Phone entries match the exact string, and the same phone number can arrive formatted differently, with or without a leading +1. To block every format of a number, use a wildcard entry: an asterisk followed by the 10-digit number, such as "*5551234567".

**Email or phone.** Blocking by phone number is usually more durable than blocking by email. A guest can create a new email address in seconds, but tends to keep the same phone number.

**What the guest sees.** A blocked guest sees a generic message at checkout, either "Unable to checkout with given email address" or "Unable to checkout with given phone number", and no reservation is created. You can also enable an admin notification email for blocked booking attempts.

Still stuck? [Contact the HomeRunner team](https://homerunner.io/contact/) with your site address and what you tried, and we take it from there.