Source quality is not delivery proof
A list can look complete and still contain old work addresses, guessed mailboxes, disposable accounts and domains that accept every address. The first campaign is the wrong place to learn which rows were real.
BounceLayer checks each contact before you send. You get a clear result for valid, invalid, catch-all, disposable and role-based addresses, so your team can decide what enters a campaign.
How to clean a contact list
- 1Upload the CSV. Select the email column; no code or special file layout is required.
- 2Review the result groups. Remove invalid and disposable contacts, and separate catch-all or unknown results.
- 3Download the clean file. Import only the segments that match your sending policy.
Use the right rule for each result
- Valid contacts can enter your normal campaign.
- Invalid contacts should be removed before the first send.
- Disposable addresses should be excluded from sales and marketing lists.
- Catch-all or unknown results should be placed in a separate, lower-volume segment.
- Role-based addresses need a team policy because intent differs from a named contact.
Where teams use lead verification
- Purchased lists before any address reaches a sequencer or email platform.
- Scraped contacts after collection and before enrichment is treated as complete.
- Agency client lists so one client's poor data does not damage a shared sending setup.
- Partner and event lists where age, consent and source quality can vary by row.