---
title: "Add Entries to System Blacklist"
slug: "add-entries-to-system-blacklist"
updated: 2025-10-07T11:35:01Z
published: 2025-10-07T12:28:46Z
---

> ## Documentation Index
> Fetch the complete documentation index at: https://docs.mapp.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Add Entries to System Blacklist

## Goal

Add email addresses, mobile numbers, or domains to the system-wide blacklist in Mapp Engage.

> [!WARNING]
> ⚠️ **Warning:** When a contact is placed on a system blacklist, all contact profile data is deleted

---

## Prerequisites

Your system role must have the following permission: **203 Contact Management: Edit system blacklist**

---

## Procedure

You can add entries to the system blacklist in one of the following ways:

### 1. Import Entries via File

Use this method if you want to upload multiple entries from a prepared file.

1. Go to *Audience > Blacklist > System Blacklist*
2. Click **Import**.
3. Select your file and configure the import settings:
  - **File Type**: *Text* or *XML*
  - **List Type:***Clear-text*or*MD5*
  - **Character Set**: e.g., *UTF-8*
  - **Import Mode**:
    - *Add* – Append entries to the existing blacklist
    - *Replace* – Overwrite the entire blacklist with your file
    - *Delete* – Remove specified entries from the blacklist
4. Click **Import**.

The logged-in user who performs the import will receive a confirmation email with the import status.

---

### 2. Manually Add Entries

Use this method to add individual entries directly via the UI (e.g., via copy & paste).

1. Go to *Audience > Blacklist > System Blacklist*
2. Click **Create**.
3. Select the **List Type**: *Clear-text*or*MD5*.
4. Enter one or more entries, each on a separate line:
  - Email
  - Mobile Number
  - Domain
5. Click **Save**.

A success message will confirm that the entries have been added to the system blacklist.

---

### 3. Blacklist a Contact from the Contact Overview

Use this method to blacklist an existing contact from the contact list.

1. Go to *Audience > Contact Management > All Contacts.*
2. Search for the contact you want to blacklist.
3. Expand the context menu next to the contact and click **Blacklist**.
4. Review or adjust the *Email*, *Mobile Number*, or *Mobile App Alias*.
5. Click **Add to System Blacklist**.

The selected contact will be added to the system blacklist.