The suppression list: who never gets contacted

Last verified 2026-07-01

Some people must never hear from you: existing customers, partners, competitors, anyone who asked to be left alone. The suppression list is that guarantee, enforced across every Kampaign.

Three ways to match

  • Email — suppresses one exact address.
  • Domain — suppresses everyone at a company (for example, everyone @acme.com).
  • LinkedIn — suppresses one exact LinkedIn profile.

How matching works

Matching is exact and ignores capitalization, web address prefixes, and trailing slashes — Acme.com and https://www.acme.com/ suppress the same company. Entries are cleaned the same way when you add them and when they're checked.

Where: Kontacts → Suppression

Suppression protects sends going forward. It doesn't delete existing contacts or conversations.
Was this helpful?

Still stuck? hello@klosent.com — a human reads every message.