NeverBounce

Verifies email lists and single addresses in real time to eliminate bounces, keeps your CRM contact data clean, and triggers automated cleanup workflows when invalid leads are detected.

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Why use Ceven?

  1. AI native NeverBounce integration

    • Describe the outcome and Ceven picks the right NeverBounce calls, fills the parameters, and checks the result.
    • Structured, agent friendly tool schemas so each call runs reliably instead of by guesswork.
    • Rich coverage for reading, writing, and querying your NeverBounce data, across all 12 of its actions.
  2. Managed auth

    • Built in OAuth with automatic token refresh and rotation.
    • One place to manage, scope, and revoke NeverBounce access.
    • Per user and per environment credentials instead of shared keys.
  3. Agent optimized design

    • Actions are tuned from real success and error rates so reliability climbs over time.
    • Full execution logs so you always know what ran in NeverBounce, when, and on whose behalf.
    • The agent pauses and asks when NeverBounce is unclear instead of plowing ahead.
  4. Enterprise grade security

    • Fine grained access so you control which agents and people can reach NeverBounce.
    • Least privilege by default, read scopes first and only the writes a workflow needs.
    • A full audit trail of every NeverBounce action to support review and sign off.

Supported tools

Every action Ceven's agents can run on NeverBounce, and when to use it.

Single check
Use this when you need to verify one email address in real time during a form submission or manual lead entry.
Create bulk job
Use this to start an asynchronous verification process for a large list of emails with custom parsing and callback settings.
Get job status
Pull the current progress and status of a bulk verification job to determine if results are ready for retrieval.
Retrieve job results
Pull paginated verification outcomes for a completed job, including the original data and the final validity status.
Download results CSV
Fetch the final segmented results of a bulk job as a CSV file for external reporting or backup.
Start paused job
Use this to trigger a parsed job that was created with the auto start option set to false.
Delete job
Permanently remove a bulk verification job and its associated results from the system.
Get account info
Pull current credit balances, total job counts, and general usage statistics for the account.
Send widget event
Report form load or completion events from the JS widget to track user interaction and conversion rates.
Verify email batch
Submit a small group of emails for verification without creating a full bulk job.
Check credit balance
Retrieve the number of remaining credits to ensure a bulk job will not fail due to insufficient funds.
Update job callback
Change the destination URL where NeverBounce sends the notification when a bulk job finishes.
Create NeverBounce Bulk Verification Job
Tool to create a new bulk verification job with parsing, sampling, and callback options. use for asynchronous list verification with advanced control.
Delete NeverBounce Job
Tool to permanently delete a job and its results. use when you need to irreversibly remove a bulk verification job. this delete is irreversible.
Download Job Results (GET)
Tool to download job results as a csv file via get. use after job completion to retrieve segmented or enriched csv output.
Start NeverBounce Job
Tool to start a parsed job when auto start is disabled. use after creating a job with auto start=false.
Get bulk job status
Tool to get the status and progress of a bulk verification job. use when
NeverBounce Account Info
Tool to get account information including credits, job counts, and usage statistics. use after authenticating to retrieve neverbounce account summary.
Download Job Results (POST)
Tool to download job results as a csv file via post. use after job completion to fetch segmented or enriched csv output.
NeverBounce Single Check
Tool to verify a single email address and gather additional information. use when you need real time validation at the point of entry.
JS Widget Send Event
Tool to send widget form events via the js widget api. use when reporting form.load or form.completion events after user interactions with your form.

21 actions · scroll to see them all

Frequently asked questions

Ceven manages the entire lifecycle of a NeverBounce bulk job. The agent first creates the job and uploads your list, then it enters a polling state where it checks the job status at regular intervals. Once the status returns as completed, the agent automatically retrieves the results via pagination. It then iterates through every email address and updates the corresponding record in your CRM or database based on whether the email was marked as valid, invalid, or unknown. This removes the need for you to ever manually download a CSV or upload a file to the NeverBounce dashboard, as the data flows directly from the API into your tools.
Yes. You can build a workflow where Ceven acts as a gatekeeper. When a lead is captured via a web form, the agent immediately calls the NeverBounce single check action. If the result is invalid, the agent can either block the record from being created in your CRM entirely or create it with a specific tag that prevents it from being added to any active marketing sequences. This ensures that your sender reputation remains protected because you never attempt to send an email to a known bad address. You can also set up alerts to notify your sales team if a high value lead provides a fake email.
If a workflow attempts to trigger a verification and the account has zero credits, NeverBounce will return an error response. Ceven captures this error and can be configured to trigger a specific failure path. For example, you can set up an automation that sends a high priority Slack message to your operations manager or opens a ticket in Jira to purchase more credits. To avoid this, you can build a recurring check that uses the get account info action every morning to monitor your credit balance and alert you when it drops below a certain threshold, such as five thousand credits.
NeverBounce identifies catch all emails as addresses where the domain is configured to accept all mail regardless of the prefix. Because these cannot be verified with one hundred percent certainty, they are flagged as such. In Ceven, you can define specific logic for these results. Some users choose to treat catch all emails as valid to ensure they do not miss potential leads, while others treat them as risky and move them to a separate, slower sending sequence. The agent maps this specific NeverBounce status to a custom field in your database so you can segment your outreach based on the level of risk.
Yes. NeverBounce imposes specific rate limits on the single check endpoint to prevent abuse and ensure system stability. If your workflow triggers a massive burst of single checks in a very short window, you may encounter a rate limit error. To handle this, Ceven implements an automatic retry mechanism with exponential backoff. This means the agent will wait a few seconds before trying the request again. For extremely high volume needs, it is recommended to use the bulk verification job action instead of multiple single checks, as the bulk endpoint is designed for massive datasets and does not suffer from the same per second request constraints.
Ceven does not store your email lists as permanent records. The agent acts as a conduit between your data source, such as a Google Sheet or HubSpot, and the NeverBounce API. When a bulk job is processed, the data is held in a temporary execution context while the agent maps the results back to your original system. Once the workflow is completed and the records are updated in your CRM, the temporary data is purged. This architecture ensures that your sensitive customer contact information is not duplicated across multiple platforms and remains stored only in your approved systems of record.
Yes. By using the send widget event action, you can feed data from your website forms into Ceven. When a user interacts with a NeverBounce widget on your site, the event can be sent to a Ceven webhook. The agent then parses that event to see if the form was loaded or completed. This allows you to build advanced attribution workflows. For example, if a user completes a form and the email is verified as valid, the agent can immediately trigger a welcome email sequence in your ESP. If the form is loaded but not completed, you can trigger a retargeting ad based on that specific interaction.
The delete job action sends a request to NeverBounce to permanently erase a specific bulk verification job and all its associated results from their servers. This action is irreversible. Once the agent executes this call, you can no longer download the CSV or retrieve the paginated results for that job ID. Use this action in your workflows for data privacy compliance, such as when a client requests that their data be deleted. You can set up a cleanup workflow that automatically deletes NeverBounce jobs older than thirty days to keep your account dashboard clean and ensure you are not storing old verification data longer than necessary.

Alternatives to NeverBounce

Other tools that solve a similar problem. Ceven supports these too, so you can switch or run more than one at once.

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