If a big chunk of your list came back risky, it is almost always for one simple reason — and it does not mean your list is bad.
The usual cause: catch-all domains
Many businesses set their mail server to accept every address. When that happens, we cannot confirm a specific mailbox exists, so we label it risky to be honest with you rather than guess. Lists full of business contacts often have lots of these.
How to act on them
- Trust your source — addresses from people who signed up themselves are usually fine.
- Check the signals — a spam-trap or abuse warning is a real reason to leave one out.
- Send carefully — try a small batch first and watch how it performs.
Tip
Risky is an honest "we are not sure", not a "this is bad". For the full playbook, see "What to do with risky addresses".
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If you still have a question, we are happy to help.