Suppression & Blacklists
Keep addresses you must never email out of your sends — protecting your reputation and respecting your subscribers' choices.
Where to find it: Under Audience you'll find Email blacklist and Suppression lists.
Email Blacklist
Your email blacklist is a list of individual addresses that should never receive your campaigns. Addresses land here automatically when someone unsubscribes or marks your email as spam, and you can add addresses manually too.
- Add an address to stop emailing it across all your lists.
- Remove an address only if you're certain it was added by mistake and you have permission to email it.
[Screenshot: Email blacklist]
Suppression Lists
A suppression list is a reusable set of addresses to exclude from sends — useful when you import a do-not-contact file from another system, or want to exclude a group across multiple campaigns.
- Create a suppression list and give it a clear name.
- Add addresses manually or import them in bulk.
- Any address on the list is automatically skipped when you send.
| Use | Best for |
|---|---|
| Email blacklist | Automatic, account-wide exclusions (unsubscribes, complaints). |
| Suppression list | Imported do-not-contact files and reusable exclusion groups. |
| IP blacklist | Blocking specific IP addresses from your forms and pages. |
Why it matters: Emailing people who unsubscribed or complained damages your deliverability for everyone. Suppression keeps your sends clean automatically.
[Screenshot: Suppression list]