Blacklist & suppression
Block specific emails or entire domains from all future sends.
Who this is for: Users managing complaints, bounces, or legal opt-outs.
Suppression list
- Open Blacklist from the sidebar.
- Import CSV with one email per column or paste addresses.
- Suppressed emails are removed from existing lists and blocked on import.
Blocked domains
Block an entire domain (example.com) so any address @example.com cannot receive mail from your brand.
Common questions
Will this affect past campaigns?
It prevents future sends. Already sent mail cannot be recalled.