If you'd like to block certain leads from ever getting imported in any of your campaigns, you can use Blocklist feature in Settings - Blocklist.
You can block the entire domain or a specific email from being imported in your campaigns.
There are four ways you can add leads/ email accounts to your blocklist:
Automatically add uninterested leads to a blocklist
Go to Preferences and enable "Automatically add unsubscribes to blocklist"
Google Sheets
Make a new google sheet, and in the first column of your sheet, add a first row that says 'Blocked', followed by the emails you'd like to block.
Click on the share button on the top right of your Google Sheets page
Click 'Change' below "Get link"
Change permissions to "Anyone with the link as Editor"
Click on "Copy link" and paste it back into Instantly.
When you finally click "Set block list", Instantly will notify you of the number of rows that have been imported, and inform you that these are now saved.
Delete columns B-Z so that your Google Sheet is simpler for you to keep track of (Optional)
Default option
You can make a Google sheet, CSV or add them manually, and in the first column of your sheet, add a first row that says 'Blocked', followed by the emails you'd like to block.
On this option, you'll need to enter the email address, not only the domain.
After you upload your file, you'll be able to manage your global blocklist inside your workspace
Remove a lead from Unibox
FAQ
Q: Why do I have an error when I try to upload a sheet in blocklist?
A: If you are experiencing the issue when you try to upload sheet in blocklist, please check if:
The file is not public or is not shared as an editor. Please share the link of the document with "access to edit"
Google sheet has more than one column - make sure to have only one column