Block: NeverBounce Block

Verify the deliverability of an email address and fetch account info and remaining credits through the NeverBounce API. Authenticate with a NeverBounce API key.

Overview

Property	Value
Type	`neverbounce`
Category	tools
Color	`#00C16E`

When to Use

Validate a single email address before sending to avoid hard bounces.
Check whether an email is deliverable before adding it to a mailing list or CRM.
Filter out invalid or risky email addresses in a lead-enrichment workflow.
Retrieve your NeverBounce account status and remaining verification credits.
Gate downstream workflow steps on whether an email passes deliverability checks.
Surface the raw NeverBounce result (valid, invalid, disposable, catchall, unknown) for custom routing logic.

Configuration

Operation

The operation to perform. Selecting an operation controls which additional fields appear.

Label	ID
Verify email	`neverbounce_verify_email`
Get account	`neverbounce_get_account`

Default: neverbounce_verify_email.

Verify email requires the Email field. Get account requires only the API Key — no email field is shown.

Email

Property	Value
Sub-block id	`email`
Type	short-input
Required	when operation is `neverbounce_verify_email`
Placeholder	`john@example.com`
Shown when	`operation` = `neverbounce_verify_email`

The email address to verify. Accepts a literal address or a reference such as {{previousBlock.email}}.

API Key

Property	Value
Sub-block id	`apiKey`
Type	short-input (password)
Required	always
Placeholder	Your NeverBounce API key

Your NeverBounce API key. Store it as an environment variable and reference it with {{NEVERBOUNCE_API_KEY}} rather than pasting the raw value.

Inputs & Outputs

Inputs:

operation (string) — Operation to perform (neverbounce_verify_email or neverbounce_get_account)
apiKey (string) — NeverBounce API key
email (string) — Email address to verify (only used by the neverbounce_verify_email operation)

Outputs:

data (json) — Result object from NeverBounce (full API response body)
metadata (json) — Response metadata (contains email + result for email verification; contains status for account info)

Tools

NeverBounce Verify Email (neverbounce_verify_email) — Calls GET https://api.neverbounce.com/v4/single/check with the provided API key and email address. Returns the full verification object in data and a summary (email, result) in metadata.

NeverBounce Get Account (neverbounce_get_account) — Calls GET https://api.neverbounce.com/v4/account/info with the provided API key. Returns the full account info object in data and a status field in metadata.

YAML Example

neverbounce_1:
  type: neverbounce
  name: "NeverBounce"
  inputs:
    operation: "neverbounce_verify_email"
    apiKey: "{{NEVERBOUNCE_API_KEY}}"
    email: "{{leadBlock.email}}"
  connections:
    outgoing:
      - target: next-block-id

NeverBounce Block