Import Suppression Lists

To protect against accidentally adding invalid, stale, or unuseable addresses to your subscriber list, you can import contacts as unsubscribed to create a suppression list.

Each list in your MailChimp account is separate from the others, so your suppression list won't be global. You'll need to create a separate suppression list for each list in your account.

In this article, you'll learn how to set up a suppression list from a CSV, TXT, or Excel file.

Before You Start

Here are some things to know before you begin this process.

  • To complete this process, you need an existing list in your account. Don't have one? Create a new list.
  • Suppression lists only require an email address field. Make sure your suppression import file does not contain additional fields or subscriber information.
  • This suppression list process can't move existing subscribers to the Unsubscribed category of your list. To mark existing subscribers as unsubscribed, use the bulk unsubscribe tool instead.

Import a Suppression List

To import a suppression list, follow the steps below.

  1. Navigate to the Lists page.
  2. Click the drop-down menu next to the list you want to create a suppression list for, and choose Import.
    click import
  3. Click CSV or tab-delimited text file to import from a CSV file or tab-delimited text file, or click Excel file.
    click csv or paste
  4. Click Next.
  5. To upload a CSV or TXT file, click Browse and choose the file from your computer. To import from Excel, copy and paste your contacts into the field provided.
  6. Click the I understand that my billing plan may be automatically upgraded checkbox to continue, but note this only applies to active subscriber imports. Your suppression list doesn't affect your billing tier.
    Example of CSV loaded for import.
  7. Click Next to review your import.
  8. Review the settings for your import and click Unsubscribed. Do not check the Auto-update my existing list box.
    in the import checklist, categorize contacts as unsubscribed
    We'll display the method you chose for your import and a notification that your import only contains one column. You can click Edit if you need to make changes.
  9. Click Import.

We'll display a success message to confirm your import.
Success message displayed on View Subscribers page to show emails were added to your suppression list.

To view your suppression list at any time, open your list and click the Email Marketing  column, and sort by subscription status. Or, create a new segment with these conditions: Email Marketing Status | is | Unsubscribed. 

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