ConvertKit (now Kit) is an email-first platform that automates email marketing, newsletter growth, and digital product sales for creators.
Free·from $33/mo
About MailerCheck
What is MailerCheck?
MailerCheck is an email list verification and deliverability testing tool that helps you clean your email list and improve your inbox placement. It validates email addresses in real time (or via API), and provides tools like Email Insights and Inbox Placement to test your content and predict spam folder placement.
Who is it for?
It's ideal for email marketers, sales teams, and businesses that send high-volume campaigns and want to protect their sender reputation. It's not a full email marketing platform—it's a verification and optimization layer that works alongside tools like Mailchimp, ActiveCampaign, and GetResponse.
Real use cases
Use it to verify your list before a big send, reduce bounce rates, and boost ROI. The API lets you validate emails in real-time as they're collected, keeping your list clean from the start. Email Insights flags spam words and broken links, so you can avoid the spam folder.
Key features
- Email List Verification — Validate single emails, upload lists, or verify via API in real time.
- Email Insights — Test content for spam triggers, broken links, and blocklist issues before sending.
- Inbox Placement — Predict deliverability against major providers like Gmail, Yahoo, and AOL.
- Integrations — Connect with MailerLite, Mailchimp, ActiveCampaign, GetResponse, ConvertKit, Zapier, and Make.
- Automated Recommendations — Get list maintenance suggestions to keep your list clean.
- No Expiring Credits — Buy credits and use them whenever, no time limit.
SaaSpartout Score
7.6
/10
Editorial score from our review methodology — not user ratings.
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Why are you looking at Email Marketing tools today?
MailerCheck Pricing
MailerCheck pricing: from $0.01 per credit (1k credit min).
For comparison: the median starting price in Marketing & SEO is $29/month, measured across 753 tools we track. See the full SaaS Pricing Index →
Pay as you go
Minimum purchase: 1,000 credits at $0.01 per credit. No monthly commitment, credits never expire.
Each credit can be used for:
- Email list verification: 1 credit per email
- Email Insights: 200 credits per test
- Inbox Placement: 200 credits per test
New accounts get 10 free credits to test Email List Verification. No credit card required.
Frequently asked questions
How much does MailerCheck cost?
MailerCheck uses a pay-as-you-go credit system. You buy credits in multiples of 1,000, with a minimum of 1,000 credits at $0.01 per credit. So the minimum purchase is $10. Credits never expire.
Is MailerCheck free?
MailerCheck offers 10 free credits for new accounts to test Email List Verification. You'll need to purchase credits for full use and for Email Insights or Inbox Placement.
Who is MailerCheck best for?
It's best for email marketers, sales teams, and businesses that send large volumes of email and need to reduce bounce rates, protect sender reputation, and improve deliverability. It's not a full email marketing platform.
What are the top MailerCheck alternatives?
Common alternatives include NeverBounce, ZeroBounce, and Kickbox. These also offer email verification and deliverability testing, but pricing and features vary.
Can I use MailerCheck with my email platform?
Yes, MailerCheck integrates with MailerLite, Mailchimp, ActiveCampaign, GetResponse, ConvertKit, Zapier, and Make.
