Before a CRM import
Separate suspect rows for review and keep the remaining source data intact.
Free list hygiene tool
Free email list cleaner
Separate likely-valid, risky and invalid addresses before you send. Up to 100 unique emails per run.
| Status | Score | Disposable | Role |
|---|
What “clean” means here
The list cleaner checks address syntax, domain existence, MX records, disposable-domain risk and common role inboxes. It intentionally does not run SMTP mailbox probing in bulk, which keeps the tool fast and avoids presenting uncertain mailbox behavior as a hard fact.
For one address where mailbox-level signals matter, use the deliverability checker.
Put the result to work
Keep review decisions attached to the evidence
The cleaner combines repeated-input removal with the free bulk checks. It reports results for review rather than silently discarding every address with a warning.
Paste up to 100 addresses
Use new lines, commas or semicolons. Keep a separate copy of your source list.
Review the status groups
Distinguish invalid, risky, unknown and likely_valid before deciding what to keep.
Download the reviewed list
The CSV includes statuses so you can apply a documented rule in your spreadsheet or CRM.
Worked examples
What the evidence tells you
Illustrative scenarios, not live results for the addresses or records shown. Open a scenario to see the next action.
01An opted-in shared inbox is risky
Context matters
A functional address can be the correct destination for a business contact.
Next action Review the reason, not only the label.
02A temporary DNS failure is unknown
Do not discard automatically
The checker could not collect enough evidence at that moment.
Next action Retry later or ask for confirmation.
03An address is invalid
Correction needed
A format or destination problem was detected.
Next action Check the original record before suppressing it.
Use it with a purpose
Where this tool fits
After collecting event registrations
Review typos among contacts who supplied their addresses. Verification does not replace permission to send.
Before you decide
Questions about this tool
Is this an automatic unsubscribe cleaner?
No. You must preserve and apply your own unsubscribe and suppression records.
Will the CSV contain every reviewed address?
Yes. This export reports checked rows with their status and score so you can decide what to include.
Does this include SMTP for the whole list?
No. The public cleaner uses the free bulk checks without per-row SMTP probing.
