LeadList Verifier vs Emailable
Emailable is an API-first verifier with a deep library of native integrations to Mailchimp, HubSpot, Salesforce, and 50+ other platforms. LeadList Verifier offers a cleaner REST API at lower cost, with two-pass catch-all resolution. Below: pricing math, where each tool wins, and what migration looks like.
Quick verdict
Choose Emailable if
Your workflow depends on a pre-built native integration (Mailchimp, HubSpot, Salesforce, and so on) and the integration alone is worth the higher per-email cost.
Choose LeadList Verifier if
You’re comfortable integrating via REST API, and lower cost plus two-pass catch-all resolution matters more than a pre-built integration. LeadList Verifier is cheaper at every tier.
The accuracy gap
Single-pass vs two-pass.
Both verifiers run a primary SMTP check that handles roughly 70 to 85 percent of a typical list cleanly. The accuracy gap shows up on the remaining segment: catch-all (accept-all) domains, where the receiving server accepts mail for any address regardless of whether the specific mailbox exists.
Emailable flags catch-all addresses and stops. Detection without resolution. The buyer is left with a segment of unresolved addresses to decide what to do with.
LeadList Verifier’s two-pass engine treats catch-all detection as an intermediate result. A proprietary second pass probes the specific mailbox behind the catch-all domain and returns a definitive verdict: deliverable, undeliverable, or risky with a confidence score. On production B2B lists, the second pass recovers around 72 percent of the catch-all segment as verified deliverable.
25-30%
of B2B addresses sit on catch-all domains
72%+
of catch-alls resolved by our second pass
100
free credits on signup, never expire
Pricing
LeadList Verifier is cheaper at every tier.
At every common volume, LeadList Verifier costs less per email than Emailable, by 20 to 75 percent depending on tier. The pricing gap reflects different business focuses: Emailable invests heavily in the native integration library, LeadList Verifier invests in the verification engine and pricing efficiency.
| Volume | Emailable | LeadList Verifier | Savings |
|---|---|---|---|
| 1,000 emails | $30 | $7 | $23 (77%) |
| 10,000 emails | $90 | $55 | $35 (39%) |
| 50,000 emails | $290 | $220 | $70 (24%) |
| 100,000 emails | $460 | $360 | $100 (22%) |
| 250,000 emails | $1,000 | $675 | $325 (33%) |
Pricing as of May 2026. Verify current pricing on emailable.com. LeadList Verifier pricing page.
Features
Feature comparison.
| Feature | Emailable | LeadList Verifier |
|---|---|---|
| Catch-all address verification (mailbox-level) | No, flags as accept-all | Yes, two-pass |
| Catch-all returns deliverable / risky / undeliverable verdict | No | Yes, with confidence score |
| Primary SMTP verification | Yes | Yes |
| Real-time verification API | Yes, API-first product | Yes |
| Bulk CSV upload | Yes | Yes |
| Webhook delivery | Yes | Yes, HMAC-signed |
| Native integrations (Mailchimp, HubSpot, Salesforce, etc.) | 50+ native integrations | REST API only, no pre-built integrations yet |
| Pricing model | Credit packs or subscription | Credit packs, no subscription |
| Credit expiration | Pay-as-you-go credits roll over | Never expire |
| Free credits on signup | 250 | 100 |
| Per-email cost at 10K | $0.0090 | $0.0055 |
| Per-email cost at 100K | $0.0046 | $0.0036 |
Accuracy
Real test data on a B2B list.
Both verifiers handle clear-cut SMTP cleanly. The accuracy gap shows up on the catch-all segment. Emailable returns the accept-all status and the addresses stay unresolved. LeadList Verifier resolves them in the second pass.
Real test data, 10,000-address B2B list
Resolved by primary pass
7,438
Accept-all flagged on single pass
2,562
Recovered by second pass
1,847
That’s an additional 18 percent of the list returned as deliverable, addresses Emailable would have left as accept-all.
When Emailable is the right choice
- Your workflow depends on a pre-built native integration (Mailchimp, HubSpot, Salesforce, and so on).
- You verify low volumes where the per-email cost gap isn't a meaningful line item.
- API-first architecture and an established integration library are the primary buying criteria.
- You're already inside the Emailable ecosystem and switching has real switching cost.
When LeadList Verifier is the right choice
- You're comfortable integrating via REST API and don't need a specific pre-built integration today.
- Per-email cost is a meaningful line item at your volume.
- Your lists are B2B-heavy where catch-all addresses dominate the unresolved segment.
- You want HMAC-signed webhooks and credit pricing that never expires.
Migration
Switching from Emailable.
For teams integrated via Emailable’s API, switching is mostly a matter of swapping the endpoint and auth header. For teams using a native integration (Mailchimp, HubSpot, Salesforce), switching means rebuilding that connection against the LeadList Verifier REST API.
01
Export your Emailable results
Download the CSV. Filter on addresses marked 'accept-all' or 'unknown'. Those are the addresses Emailable couldn't fully resolve.
02
Upload to LeadList Verifier
Drop the filtered CSV into the upload zone. The email column is auto-detected. Credit cost is shown before you commit.
03
Run two-pass verification
The primary pass confirms the SMTP result. The proprietary second pass resolves the accept-all segment into deliverable, undeliverable, or risky verdicts.
04
Swap the API endpoint
If you integrated with Emailable's API, swap the base URL to https://www.leadlistverifier.com/api/v1 and the auth header to Bearer <key>. The request and response shapes are similar enough that most adapters need a few hours of work.
FAQ
Common questions.
How does Emailable handle catch-all addresses?
Emailable detects catch-all (accept-all) configurations and returns the address with that status. The specific mailbox is not verified beyond detection. On B2B lists where catch-all density runs 25 to 30 percent, that segment stays unresolved without a second tool.
How does pricing compare at 10K and 100K volumes?
LeadList Verifier is cheaper at every tier. At 10,000 emails Emailable is $90 and LeadList Verifier is $55. At 100,000 Emailable is $460 and LeadList Verifier is $360. The pricing gap reflects the difference between an API-first verifier with extensive integrations and a purpose-built two-pass list verifier optimized for cost-efficiency.
What integrations does LeadList Verifier offer?
LeadList Verifier offers a clean REST API and HMAC-signed webhooks for async jobs. We do not yet offer the breadth of native integrations Emailable has (Mailchimp, HubSpot, Salesforce, and 50+ others). If your workflow depends on a specific pre-built integration, check whether it exists for LeadList Verifier before switching. If you're API-first, the migration is straightforward.
Does LeadList Verifier have a real-time API like Emailable?
Yes. A REST API with bearer-token auth, real-time single-email verification, bulk endpoints up to 10,000 per call, and HMAC-signed webhook delivery for async jobs. The API is the canonical way to integrate LeadList Verifier into your stack.
Can I migrate from Emailable?
Yes. Export your Emailable results, isolate the segment marked 'accept-all' or 'unknown', and upload that CSV to LeadList Verifier. Run two-pass verification on the unresolved segment. Most teams recover 60 to 75 percent of that segment as verified deliverable, then merge the recovered addresses back into their deliverable list.
Is there a free trial?
Yes. 100 free verification credits on signup, no credit card required. Use them on a real list to compare results before purchasing more credits.
Cheaper, with deeper resolution.
Run a sample list with 100 free credits. Compare per-email cost, accept-all recovery, and API ergonomics.