What is MailerCheck
MailerCheck validates email addresses and tests message deliverability so campaigns reach real inboxes. It checks lists for invalid addresses and scans content for spam triggers. Teams use it to protect sender reputation and increase open rates.
Overview
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.
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.
Key Features
- Bulk email list verification
- Real-time API address validation
- Inbox placement prediction
- Email content spam analysis
- DMARC domain monitoring
- Blocklist alerting
- Bounce rate reduction
- Integration with major ESPs
- Disposable email detection
- Actionable deliverability reports
Ideal Customer Profile
Marketing teams and businesses that rely on high-volume email outreach and need reliable list hygiene and inbox placement.
Best for: Seed, SMB, Mid-market