Suppression List
The Suppression List contains email addresses that QuantixOne will never send emails to. Addresses are added automatically when a hard bounce or spam complaint occurs, and you can also add them manually. Suppressed contacts are protected from accidental sends.
Why Suppression Lists Matter
Sending emails to invalid addresses or to people who have complained increases bounce rates and spam complaint rates, which damages your domain's sender reputation. Maintaining a clean suppression list keeps your deliverability high.
Navigating to the Suppression List
- Go to Settings → Channels → Email.
- Click the Configure tab.
- Scroll down to the Suppression List section.
The Suppression List is in the Configure tab of Email settings.
How Addresses Are Added Automatically
QuantixOne automatically adds an email address to the suppression list when:
| Event | Description |
|---|---|
| Hard Bounce | The email address does not exist or permanently rejected the email |
| Spam Complaint | The recipient clicked "Report Spam" in their email client |
| Manual Unsubscribe | The contact clicked the unsubscribe link in an email |
You will also see these events logged in the Inbound Email Processing log.
Viewing the Suppression List
The suppression list table shows:
| Column | Description |
|---|---|
| Email Address | The suppressed address |
| Reason | Why it was suppressed (Bounce, Complaint, Manual) |
| Date Added | When it was added to the list |
The suppression list shows all suppressed addresses and the reason they were added.
Manually Adding an Address
To add an address to the suppression list manually:
- Click + Add to Suppression List.
- Enter the email address.
- Select a reason (optional).
- Click Add.
Manually add an address to prevent all future emails to it.
Removing an Address
If you believe an address was added in error and the contact would like to receive emails again:
- Find the address in the suppression list.
- Click the Remove (trash) icon on that row.
- Confirm removal.
The address is removed from the suppression list and future emails to it will be allowed.
Remove an address to allow future emails to that contact.
Note: Always confirm with the contact before removing them from the suppression list, especially if they were added due to a spam complaint.
Exporting the Suppression List
Click Export to download the full suppression list as a CSV file. This is useful for auditing or syncing with external systems.