Short answer
NeverBounce documents single-address and bulk verification APIs. It fits at the point where an address enters a campaign or inbound workflow. SoftSync can store the verification result, source, timestamp, owner, and next action, but it should not treat a past check as a permanent guarantee.
The situation
An address arrives from a form, a spreadsheet, or a data provider. Waiting until the end of the campaign to discover that it is risky is expensive; blocking every uncertain address is also wasteful. A small verification step plus a human decision is the useful middle ground.
Connected workflow
- Receive the address in a SoftSync group or through Forward Email Agent.
- Call NeverBounce’s single-verification API, or submit a controlled batch for a list.
- Write the status, reason, and checked-at value back through a verified API or automation bridge.
- Use Autopilot to create a review task for unknown or risky results.
- Send only the approved segment and record the eventual reply, bounce, or opt-out in the record timeline.
Human control and boundaries
Do not retry an unchanged address indefinitely or let an API timeout become permission to send. Handle rate limits, catch-all results, duplicate requests, and the difference between a syntactically valid address and a deliverable one.
What to measure
Track verification latency, accepted-address rate, recheck rate, bounce rate, API errors, and the time from inbound event to an owned sales action.
Sources and further reading
- NeverBounce single verification
- NeverBounce bulk API
- NeverBounce practitioner discussion
- SoftSync Autopilot
FAQ
Is this a two-way sync?
Only if you build and verify one. The safe default is a one-way validation result entering a reviewable SoftSync field or task.
Should every inbound address be rejected when verification is unknown?
Not automatically. Define the rule for your business, preserve the result, and let a person decide when the value is material.