Smartlead campaigns

Smartlead-ready lists: verify first, sequence second

Smartlead is built for scaled cold email. The expensive mistake is loading enrichment guesses into campaigns and watching hard bounces torch warmup. This page is the deeper Smartlead-only workflow (the Instantly combo lives separately). Verifly sits between enrichment and Smartlead import — prepaid credits, never expire.

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Verify a Smartlead lead rowAPI

curl -X GET "https://verifly.email/api/v1/verify?email={{email}}" \
  -H "Authorization: Bearer vf_your_api_key"

Real-time SMTP mailbox checks

Single, batch, and async bulk verification

Disposable, role account, and catch-all detection

Pay-as-you-go credits with no subscription lock-in

Search fit

Built for Smartlead email verification

Use Verifly when you need a simple API, predictable pricing, and clean JSON results before emails hit your product, CRM, or campaign tool.

Pre-import CSV clean for Smartlead campaigns and lead lists

Clay HTTP column → filter deliverable → Smartlead CSV/API push

n8n / Make / Zapier verify gate before Smartlead lead create

Agency: one Verifly pack shared across client Smartlead accounts

Smartlead-specific verify-before-import

Smartlead campaigns inherit whatever you upload. Pattern-matched Apollo emails, scraped LinkedIn addresses, and stale CRM exports all look fine until the first hard bounce wave. Run Verifly first: keep deliverable, optionally triage risky/catch-all, drop undeliverable and disposable.

Compared with the Instantly + Smartlead combo page, this guide focuses on Smartlead lead lists, campaign imports, and automation hooks that only talk to Smartlead.

Recommended pipeline

Enrich → Verifly (batch or bulk) → filter → Smartlead import. For ongoing top-ups, verify in your automation before the Smartlead “add lead” step so bad rows never enter the campaign.

Create a Verifly API key (trial credits included).
Export or stream candidate emails (Apollo, Clay, CRM, Sheets).
POST /api/v1/verify/batch (≤100) or async bulk for large files.
Import only deliverable (and your chosen risky policy) into Smartlead.

Batch verify before Smartlead

curl -X POST "https://verifly.email/api/v1/verify/batch" \
  -H "Authorization: Bearer vf_your_api_key" \
  -H "Content-Type: application/json" \
  -d '{"emails":["jordan@acme.com","j.lee@acme.io"]}'

PAYG vs monthly seats for Smartlead volume

Smartlead teams often run feast-or-famine weeks. Monthly verifier seats charge for idle capacity. Verifly credits never expire — buy a pack when a campaign launches, pause when it does not. Estimate packs at /tools/credit-calculator.

Contact: hello@veriflyemail.com only.

FAQ

Frequently asked questions

Is this different from /use-cases/instantly-smartlead?

Yes. That page covers both sequencers together. This page is Smartlead-only depth: import hygiene, automation gates, and agency multi-account credit pools focused on Smartlead campaigns.

Can I verify inside Smartlead itself?

Treat Verifly as the pre-import gate via API/CSV/automation. That keeps Smartlead focused on sending while verification stays consumption-billed and reusable across tools.

What about catch-all domains?

Verifly flags catch-all explicitly. Many Smartlead operators exclude catch-all from cold campaigns and keep them for softer follow-ups. Your policy, your filter.

Do credits expire if a Smartlead campaign pauses?

No. Verifly prepaid credits never expire and there is no monthly seat — idle weeks cost $0 beyond what you already bought.

Ready to wire this?

Start free with 100 credits, mint a vf_ API key, and paste the recipe above. Buy a pack only when you need more — credits never expire.

Start free · 100 credits View pricing API docs