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MailerCheck

Email List Verification & Deliverability Testing Tool·mailercheck.com

MailerCheck is an email verification, analysis, and list cleaning tool that helps businesses maintain clean subscriber lists and improve email deliverability. It offers bulk and real-time API email verification, email content testing (Email Insights), and inbox placement testing against major mailbox providers. The tool identifies invalid, disposable, catch-all, role-based, and full-mailbox addresses to reduce bounce rates and protect sender reputation.

What it's for

Verify and clean email marketing listsDetect invalid, disposable, catch-all, and role-based email addressesReal-time email verification at point of collection via APITest email content for spam triggers, broken links, and blocklist issues before sendingPredict inbox placement across major mailbox providers before sending campaignsMonitor list health with usage reports

Features 15

24/7 customer support
Autopay for automatic credit top-up
Bulk email list verification
Catch-all and role-based email detection
Detailed, downloadable reports
Disposable email detection
Email Insights (content and deliverability testing)
Flexible credit purchasing (1,000 to 5,000,000 credits)
Free duplicate removal
Full mailbox detection
GDPR-compliant data protection
Inbox Placement testing against major mailbox providers
Real-time API email verification
Typo and syntax error detection
Usage reports

At a glance

free trialAPI

TypeWeb app

DeploymentCloud

PlatformsWeb

CompanyMailerLite

Integrations

MailerLiteMailchimpActiveCampaignGetResponseConvertKitZapierMake

Complianceself-reported

GDPR

Resources

Docs

Pricing

Pricing is entirely credit-based (pay-as-you-go), not subscription-based. Minimum purchase is 1,000 credits. New signups get 10 free credits with no credit card required.

Pay as you goQuote

New accounts receive 10 free credits to test Email List Verification, no credit card required. Additional credits must be purchased to test Inbox Placement and Email Insights.

1,000 credit minimum purchase; credits do not expire

Per-credit cost decreases as purchase volume increases, from $0.01 per credit down to $0.001 per credit.