MailerCheck
MailerCheck validates email addresses and tests message deliverability so campaigns reach real inboxes.
Updated April 2026
Overview: What is MailerCheck?
It checks lists for invalid addresses and scans content for spam triggers. Teams use it to protect sender reputation and increase open rates.
MailerCheck is an email list verification and deliverability testing platform built to improve campaign performance. It checks every address on a list for validity and removes risky or invalid entries before sending. The tool also analyzes email content for spam triggers and predicts whether messages will land in the inbox or spam folder. DMARC and blocklist monitoring run continuously to protect domain reputation. Results return within seconds, allowing fast decisions on list hygiene. Integrations with major email service providers keep workflows connected without switching tools.
Fit: Ideal customer profile.
Marketing teams and businesses that rely on high-volume email outreach and need reliable list hygiene and inbox placement.
- Seed
- SMB
- Mid-market
Capabilities
Key features.
01
Bulk email list verification
02
Real-time API address validation
03
Inbox placement prediction
04
Email content spam analysis
05
DMARC domain monitoring
06
Blocklist alerting
07
Bounce rate reduction
08
Integration with major ESPs
09
Disposable email detection
10
Actionable deliverability reports
Usage
How to use MailerCheck.
Upload a contact list to the dashboard or connect the real-time API to verify addresses at the point of collection. Review the returned report to remove invalid, disposable, or role-based addresses. Run inbox placement tests on draft content to spot spam triggers before scheduling a send.
Cost
Pricing.
$10/ Per credit
Starts at $10 for 1,000 credits with a free tier of 200 credits and paid plans up to $975 per month.
At a glance
Quick facts.
- Stack position
- Deliverability
- Category
- Data Sources, Sales Tools
- Best for
- Seed, SMB, Mid-market
- Pricing
- From $10/Per credit
Subcategories
- Data Validation & Verification
- Email Verification
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Questions
Frequently asked.
How do I get started with MailerCheck?
Sign up for a free account and upload your list or connect the API for real-time checks. The platform returns a detailed report you can act on immediately.
What does MailerCheck cost?
Credits start at $10 for 1,000 verifications, with monthly plans ranging from free to $975. Pricing scales with volume and feature access.
Why should I pick MailerCheck over alternatives?
It delivers over 98% verification accuracy and bundles inbox placement, DMARC monitoring, and blocklist alerts in one tool. This combination helps protect sender reputation and improve ROI.
What does MailerCheck actually do?
It validates email addresses, predicts inbox placement, scans content for spam triggers, and monitors domain health. These checks run before and between campaigns to keep deliverability high.
Is there a free plan?
Yes. New accounts receive 200 free credits with no credit card required. You can test list verification and inbox placement at no cost.
Which platforms does MailerCheck integrate with?
It connects to Mailchimp, ActiveCampaign, Zapier, and other popular email tools. These integrations let you clean subscriber lists without leaving your existing workflow.
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Talk to us: Pick the tool. We run the system around it.
MailerCheck is one part of a stack. We build and run the revenue system it plugs into.
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