ConvertKit Email Verification: Clean Your Subscribers | Mailthentic
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ConvertKit Integration

ConvertKit Email Verification

Clean your ConvertKit subscribers before your next broadcast. Connect your ConvertKit account, verify every email address, and push clean results back, all automatically.

ConvertKit (now Kit) is an email marketing platform popular with creators, bloggers and newsletter writers. Mailthentic integrates directly with ConvertKit to help you verify and clean your contact database without CSV exports or manual work.

How It Works

Four steps to a clean ConvertKit database.

1

Connect ConvertKit

Paste your API key once to connect. No password sharing.

2

Import contacts

Pull contacts or lists from ConvertKit. Duplicates are removed automatically.

3

Verify every email

Each address runs through the 9-point engine including SMTP mailbox confirmation, catch-all and disposable detection.

4

Push results back

Clean results sync back to ConvertKit. Invalid contacts are tagged so you can exclude them from campaigns.

Why Verify Your ConvertKit Contacts

Protect creator deliverability

Bounces from broadcasts hurt your sending reputation. Verify subscribers first.

Lower subscriber costs

ConvertKit prices by subscriber count, so remove invalid addresses and pay only for real readers.

Better engagement data

Verified subscribers give cleaner open and click signals for your sequences.

Verify new signups

Use the API to verify form and landing-page signups before they enter ConvertKit.

Frequently asked questions

How does Mailthentic connect to ConvertKit?
Mailthentic connects to ConvertKit securely, imports your contacts, verifies every address with the 9-point engine, and writes clean results back. You never share your ConvertKit password.
Does verification send emails to my contacts?
No. Verification uses DNS lookups and SMTP handshakes to confirm a mailbox exists without delivering any message, so your contacts are never emailed.
How much does it cost?
The integration is free. You pay only for verification credits used, one credit per unique address. Every new account starts with 100 free credits, no credit card required.

Clean your ConvertKit contacts today

Start with 1,000 free verification credits. No credit card required.