What is the Block List?
The Block List feature allows you to prevent specific email addresses or domains from being contacted by your campaigns. Once added, these entries are automatically excluded from campaign sends and can optionally be applied to other sending features such as Unibox Outgoing Replies, AI Reply Agent, and Auto Follow-ups.
Accessing the Block List
To access the Block List:
Navigate to Settings
Go to Block List
Use the available options to:
Add new entries manually.
Sync entries from Google Sheets.
Export the entire block list.
Search existing entries.
Delete blocked entries.
Adding Emails or Domains Manually
You can manually add one or multiple emails or domains to your Block List.
Steps
Click Add New.
Enter the email addresses or domains.
Add one entry per line.
Click Add to save the entries.
Syncing the Block List from Google Sheets
You can automatically sync blocked emails and domains from a publicly accessible Google Sheet.
Requirements
Google Sheet must be publicly accessible ("Anyone with the link can view").
Google Sheet must contain one email address or domain per row.
Google Sheet must use only the first column for syncing.
Only the first 10,000 emails and domains from the first column will be synced
This sync will only ADD to your block list (will not remove existing entries)
The first sync will run immediately after saving. After that, the sheet will be synced automatically a few times each day.
Applying the Block List to Other Features
By default, campaign emails are always blocked for all Block List entries.
You can optionally apply the Block List to:
Unibox Outgoing Replies
When enabled:
Emails sent from Unibox outgoing replies will respect your Block List.
AI Reply Agent
When enabled:
The AI Reply Agent will not send replies to blocked recipients.
Auto Follow-ups
When enabled:
Auto Follow-up emails will not be sent to blocked recipients.
Frequently Asked Questions (FAQs)
Can I block an entire domain?
Yes. Adding a domain (e.g., example.com) blocks all email addresses associated with that domain.
Can I upload more than 10,000 entries from Google Sheets?
No. Only the first 10,000 entries from the first column are synced.
Will syncing remove emails that I deleted from my Google Sheet?
No. Google Sheet sync only adds new entries and does not remove existing Block List items.
How often does Google Sheet syncing happen?
The first sync runs immediately after saving the Google Sheet URL. Subsequent syncs occur automatically several times per day.
Does the Block List apply to campaigns automatically?
Yes. Campaign emails are always blocked for all Block List entries.
Can I block multiple emails at once?
Yes. When adding entries manually, simply enter one email address or domain per line.
Can I export my Block List?
Yes. Use the Export All option to download all blocked entries.