Waterfall Enrichment

Cleanlist uses waterfall enrichment to find contact data — automatically querying multiple data providers in sequence until information is found.

Two distinct waterfall sequences

The provider order is optimized per enrichment mode:

Email-only mode (1 credit)

Cache → IcyPeas → LeadMagic → Wiza → Prospeo → Findymail → AnyMailFinder → Hunter.io → Datagma

Full mode — email + phone (up to 11 credits)

Cache → Wiza → LeadMagic → Prospeo → Findymail → AnyMailFinder → IcyPeas → Hunter.io → Datagma

Wiza is promoted to first position in full mode because it returns email and phone in a single call, avoiding a redundant provider round-trip.

Phone-only mode (10 credits)

Cache → Wiza → LeadMagic → Prospeo → Findymail

How the waterfall process works

Request Enrichment
    ↓
Cache Hit? → Return data ✓ (billed at normal rate)
    ↓ No
Provider 1 → Found? → Return ✓ (charge on success)
    ↓ Not Found
Provider 2 → Found? → Return ✓
    ↓ Not Found
...
    ↓ Not Found after all providers
Mark as Not Found (0 credits charged)

Enrichment types and costs

Email enrichment — 1 credit

• Checks cache first (billed at the normal rate; 2-month freshness window)
• Cascades through up to 8 email providers in email-only order
• Returns the email with a deliverability status from the finding provider
• Cost: 1 credit on a successful find; 0 on a miss

Phone enrichment — 10 credits

• Checks cache first
• Cascades through phone-capable providers
• Returns the phone number found
• Carrier and line-type details come from the phone_validation Smart Column (0.5 credits), not from enrichment itself
• Cost: 10 credits on a successful find; 0 on a miss

Full enrichment — up to 11 credits

Request email and phone together. Each is only charged if found:

• Business email with deliverability status — 1 credit if found
• Phone number — 10 credits if found
• Both found: 11 credits total

Email deliverability status

Every enriched email comes back with a deliverability status from the finding provider's own signals:

For independent deliverability verification (via Emailable), run the email_validation Smart Column on demand — it costs 0.5 credits per row and is not automatic.

Emailable returns its own four output values, which are distinct from the five finding-provider statuses above:

Smart caching

• Instant results: Previously found data returned immediately, billed at the normal rate
• 2-month freshness: The cache window is two months
• No re-verification on cache hits: Cached results are returned as-is; they are not re-verified automatically, but a returned email/phone is still charged at the standard rate.

Pay-for-results semantics

What happens when enrichment fails?

If the waterfall cannot find the requested data after all providers:

1. No charge: Failed enrichments cost 0 credits
2. Partial results: You may get an email even if phone fails, or vice versa — each is charged independently
3. Retry later: New provider data becomes available as databases update
4. Status tracking: Lead lists show which enrichments succeeded or failed

Personal email and reverse email — separate flows

These are distinct from the main waterfall:

• Personal email (non-work address): cache → Wiza → LeadMagic cascade — 1.5 credits per billable attempt. See Find Personal Email.
• Reverse email lookup: Wiza → Findymail → LeadMagic → IcyPeas — 1 credit per attempt. Charged per attempt regardless of outcome.

Switching modes: what Full enrichment adds

Email-only and full (email+phone) enrichment both query all 8 email providers — they only differ in provider order. Switching from email-only to Full does not widen the email search; it adds the phone provider cascade on top. So if email-only returned no email, Full will not find an email either — but it may still return a phone number.

Deliverability best practices

Validate before sending. Run the email_validation Smart Column to confirm deliverability before launching a campaign.

Protect your sender reputation:

• Keep bounce rates low
• Include an unsubscribe link in every send
• Warm up new sending domains
• Ramp send volume gradually
• Remove bounced addresses promptly

Improve match quality:

• Include LinkedIn URLs on your input rows
• A company domain beats a company name for matching
• Full enrichment adds a phone number on top of the email

A note on ProxyCurl

ProxyCurl is used for prospecting and profile-finding only. It is not part of the email or phone enrichment waterfall.

Learn more

• Enrichment providers
• Credit pricing
• Find Personal Email
• Bulk enrichment guide