'%20stroke-width='56'%20stroke-linecap='round'%20stroke-linejoin='round'/%3e%3cpath%20d='M452%2092%20L421.6%20196%20L348%20122.4%20Z'%20fill='url(%23gi)'%20stroke='url(%23gi)'%20stroke-width='20'%20stroke-linejoin='round'/%3e%3c/svg%3e)
Lead list hygiene
Suppression List Builder
Merge unsubscribes, bounces, and existing customers into one deduped suppression file you can upload to any sender.
All free toolsFree · nothing stored
Sources to suppress
Emails or whole domains, one per line. Domains suppress every address on them.
List to scrub
Optional. Paste the campaign list and we return it with every suppressed record stripped out.
Output
Suppressed addresses
0
Suppressed domains
0
Records removed from list
0
Free community
Get every free tool - plus the people who use them
Join our free Facebook group for new tool drops, deliverability teardowns, and answers from operators sending cold email every day.