ConvertKit ◆
ConvertKit (now Kit) is an email-first platform that automates email marketing, newsletter growth, and digital product sales for creators.

Email List Validation (Email Marketing): Email List Validation cleans email lists with 99%+ accuracy, starting at $0.001 per email, with a free trial. Pricing: from $0.001/email. (data verified August 2026)
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Email List Validation (ELV) is an email verification service that cleans your email lists by removing invalid, risky, and duplicate addresses. It uses 12 verification checks per email, including syntax, domain, MTA/MX, and real-time SMTP validation, ensuring high deliverability.
Poor email lists cause bounces, spam complaints, and damage to sender reputation. ELV protects your campaigns by eliminating toxic emails before you send, reducing bounce rates and improving inbox placement.
Ideal for marketers, agencies, and businesses that send bulk emails. It's perfect for cleaning lists before campaigns, verifying signups via API, or automating list hygiene. It's not for small occasional senders who don't need volume verification.
E-commerce stores verify customer emails at checkout, SaaS companies clean their newsletter lists, and agencies manage multiple client lists. ELV integrates with HubSpot, ActiveCampaign, Mailgun, SendGrid, and more.
Editorial score from our review methodology — not user ratings.
Email List Validation pricing: from $0.001/email.
Credits never expire. Starting at $19 for 2,500 credits ($0.0076/email), volume discounts down to $0.001 per email. Includes all 12 verification tools and money-back guarantee.
Save ~23% vs pay-as-you-go. From $14/mo for 2,500 credits, up to $899/mo for 1M credits. Credits expire monthly.
Custom pricing below $0.001/email for 10M+ emails. Includes dedicated account manager, priority queues, and 100% guarantee.
Free trial: Start with 100 free credits.
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