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Hunter to Instantly: verify the list before you import it

Workflow · SimpleVerifier Team · Steps checked 20 October 2026

Export your leads from Hunter as a CSV, upload it to SimpleVerifier as it is, and import only the valid file into Instantly, mapping the email column to Email. Keep risky (usually catch-all) rows out of the main campaign and drop invalid ones.

Step 1

Get the CSV from Hunter

  1. 1In Hunter, open Leads and the list that holds the people you want.
  2. 2Select the leads to export.
  3. 3Click the three dots that appear once leads are selected.
  4. 4Click Export to download the CSV.

Hunter's help says the people export includes each lead's verification status and date, and that exports from people lists have no row limit. From Domain Search, only emails you have revealed can be exported.

Source: Hunter help centre · Hunter export guide

Step 2

Verify every address

  1. 1Sign in and upload the CSV as it came out of the export. The email column is found by its header or its contents.
  2. 2Every row gets a live mailbox check with catch-all, disposable and role-address detection.
  3. 3Download the valid, risky and invalid files. Each keeps every original Hunter column.
Check 100 emails free

Then $9 for 2,500 emails, or $29.99/mo unlimited.

Step 3

Import into Instantly

  1. 1In Instantly, go to the Engage tab and open the cold outreach campaign.
  2. 2Open the Leads section and click Upload CSV, then pick the valid file.
  3. 3Check the Select Type dropdown on each column: map the email column to Email and set columns you do not need to Do Not Import.
  4. 4Review the upload settings, then click Upload all.

Source: Instantly: How to import leads via CSV

Column mapping in Instantly

Column in the Hunter fileInstantly fieldNote
Email addressEmailRequired. The upload does not work without it.
First nameFirst Name
Last nameLast Name
Company nameCompany Name
Anything your copy uses (title, city, an opening line)Custom variableHeaders at most 20 characters, starting with a capital letter.

Column names in your Hunter file depend on your export settings, so match them by what they hold. Field names on the right are as Instantly’s help article writes them.

  • Row 1 holds column names: no duplicates, at most 20 characters each, starting with a capital letter.
  • At most 50 variables per upload; drop empty and unused columns first.
  • Save as CSV UTF-8 (comma delimited) from Excel.

Which results to send

  • validSend

    The mailbox server confirmed the address. This is the file that goes into the main campaign.

  • riskyHold, or send separately

    Usually a catch-all domain, which accepts every address so no verifier can confirm the mailbox. Leave it out, or load it into its own smaller campaign at low daily volume so any bounces stay visible and away from the main one.

  • invalidDrop

    The server said the mailbox does not exist, or the domain cannot take mail. Sending will bounce.

Things to watch with Hunter and Instantly

  • Hunter's export includes a verification status and date column. Drop both before upload, or map them to Do Not Import, so they do not count toward Instantly's 50-variable limit.
  • If you re-verify here, untick Verify Leads at upload so Instantly does not charge credits to check the same addresses again.
  • Check for Duplicates Across All Campaigns/Lists is on by default and blocks leads already in another campaign or list. Leave it on unless you mean to re-contact someone.
  • The Verify Leads box charges Instantly credits per lead (0.25 per lead in its help article). If the file is already verified, you can untick it.
  • Instantly's default auto-pause stops a campaign at a 5% bounce rate, once it has made more than 200 sends. Source.

Skip the export: subscribers can connect Instantly and verify a campaign's leads directly. See the Instantly integration.

Estimate what an unverified list would do to the campaign with the cold email bounce cost calculator, or reshape the file for Instantly with the CSV import formatter.

Common questions

How do I move a Hunter list into Instantly?
Get a CSV of the list out of Hunter (In Hunter, open Leads and the list that holds the people you want. Select the leads to export. Click the three dots that appear once leads are selected. Click Export to download the CSV.), verify it, then import the valid file into Instantly: In Instantly, go to the Engage tab and open the cold outreach campaign. Open the Leads section and click Upload CSV, then pick the valid file. Check the Select Type dropdown on each column: map the email column to Email and set columns you do not need to Do Not Import. Review the upload settings, then click Upload all.
Do I need to verify a Hunter export before Instantly?
Lead databases go stale as people change jobs, and a bounced cold email counts against your sending domain the same as any other. Verifying the Hunter export before it goes into a sequence keeps the bounce rate under the roughly 2% line where mailbox providers start filtering, and it catches catch-all domains you should not send to blind. Instantly's default auto-pause stops a campaign at a 5% bounce rate, once it has made more than 200 sends.
Which columns should I map in Instantly?
Email address to Email; First name to First Name; Last name to Last Name; Company name to Company Name; Anything your copy uses (title, city, an opening line) to Custom variable. Set every column your copy does not use to skip or ignore.
Should risky or catch-all addresses go into the campaign?
Usually a catch-all domain, which accepts every address so no verifier can confirm the mailbox. Leave it out, or load it into its own smaller campaign at low daily volume so any bounces stay visible and away from the main one.
What does verifying the list cost?
Your first 100 checks are free after Google sign-in, once per account. Then $9 for 2,500 emails one-time, or Pro at $29.99 a month with no cap on email verification. Files up to 100,000 rows.

Clean your next list before it bounces

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