Your audience · Updated Oct 9, 2026

Verify your lists

In short

Verification checks every address before you email it, so you don't send to addresses that bounce. It's recommended, not required: a campaign can use a list that isn't verified, and invalid addresses are never mailed.

Verify a list

Step 1: On Verification, click Run check and pick the list. (Or use Verify emails in the list's menu on Contacts.)
Step 2: Wait for it to finish. A running check shows its progress and saves what it finds as it goes; a big list can take a long time.
Step 3: Look at the results. The check's menu has View invalid, and Export valid, Export invalid and Export not verified to download each as a CSV file (also in the list's menu on Contacts).

The Verification page: checks used this month, valid and invalid counts, and each list's latest check. — Verification. 1: Run check. A running check shows its progress.

What the results mean

Valid: Can be emailed.
Invalid: Never emailed. A broken format, a typo domain (gmial.com), a domain that can't receive mail or whose mail server can't be found, a role address (info@, sales@), a disposable inbox, a catch-all domain, a full or missing mailbox, or a mail server that won't answer the check. Recheck tries again.
Not verified yet: Never checked. A campaign mails it; checking first is recommended.

The check can't always tell whether a mailbox still exists, so dead mailboxes on an older list may pass and then bounce. Bounces are suppressed automatically, but too many stop the mailbox that sent them (over 5%). If a list is more than a few months old, clean it with a mailbox-level verifier before importing it.

How many checks you get

Each plan includes as many verifications a month as it holds contacts. A recheck uses them again. A check that is stopped, or doesn't finish, gives back what it used.

Starter: Verifications a month: 2,000

Growth: Verifications a month: 25,000

Scale: Verifications a month: 100,000

Plan	Verifications a month
Starter	2,000
Growth	25,000
Scale	100,000

The Verification page shows how many you've used this month. The count resets on the 1st.

Verification credits

When a list is bigger than the checks left this month, verification credits cover the rest without changing plan. One credit checks one address. They're used only after your plan's verifications for the month, and they never expire.

$3.90 per 1,000 ($0.0039 each). Buy any amount from 1,000, in steps of 100.
Every address a check judges uses a credit, including invalid ones: a failed basic check, a mailbox that doesn't exist, or a mail server that won't answer. Nothing is used for the addresses a check doesn't reach: a check you stop keeps what it found and gives back the rest.
Credits belong to the workspace: they can't be moved to another one, and they're lost if the workspace is deleted.

Step 1: On Verification, the workspace owner clicks Buy credits. When a list is too big, Run check offers to buy what it's short of.
Step 2: Choose how many, then pay at checkout.
Step 3: Back on Verification, the credits are added. Show purchases and use lists each purchase and check.

If something's wrong

Most of my list came back invalid.: It's often role addresses (info@, hello@), disposable inboxes or catch-all domains. Find named people at real company domains instead, then import and check again.
A check says not enough verifications are left.: The list is bigger than this month's checks and your verification credits. The owner can buy credits on Verification, upgrade, or wait for the 1st.
The check stopped part-way.: Use Resume check in the list's menu to check the addresses it didn't reach. What it already found is kept.

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Import contactsImporting your own lists from a CSV file, Google Sheets or typed addresses, and using their columns in emails.Suppressions and unsubscribesAddresses that are never emailed again, how they get there, and the unsubscribe link in every email.The pre-send gateThe checks every campaign and every email must pass, and how to fix each one.

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