Maximize the return on your data investment. MediumAxis provides a robust, multi-layered email validation service exclusively for our customers, designed to clean the lists you purchase from us and ensure maximum inbox placement.
Key Benefit
Every list purchased from MediumAxis includes free validation of up to 50,000 emails.
🎯 Why Validate Your Email List?
Sending emails to invalid, inactive, or risky addresses harms your business. Our validation service protects your sender reputation and boosts campaign performance by:
Increasing Deliverability
Ensure emails reach the inbox, not spam
Improving Sender Reputation
ISPs trust senders with clean lists
Boosting ROI
Better opens, clicks & conversions
Saving Time & Money
Focus on genuine, reachable leads
🔄 The Need for Ongoing Validation: B2B contact data decays at ~22.5% annually. People change jobs, leave companies, or mailboxes become inactive. Validation is the critical final step to ensure the list you use today is as accurate as possible.
🔬 Our Validation Methodology: A Multi-Layer Approach
We go beyond simple syntax checks. Our proprietary system uses a multi-stage process to guarantee the highest accuracy possible.
Syntax Check
Immediate rejection of emails with invalid format (missing “@”, invalid characters).
Blacklist & Keyword Filter
Checked against 10M+ blacklisted records + filtered for inappropriate/nonsensical keywords.
Disposable & Generic Email Filter
Auto-exclusion of temporary email services and role-based accounts (info@, admin@, postmaster@).
SMTP Verification
Secure session with recipient’s mail server to verify mailbox existence without sending an email. The gold standard for deliverability checks.📦 The Validation Result: Four Segmented Files
Upon completion, you’ll receive four distinct files via a secure, encrypted download link. Your original list structure and columns remain fully intact.
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Valid Records
Emails that passed all checks, including positive SMTP response. Your prime targets for campaigns.
🚫
Excluded Records
Filtered out based on quality rules: blacklisted addresses and generic role accounts (info@, admin@, office@).
❌
Bad Records
Definitively invalid: syntax errors, non-existent domains, or server rejections during SMTP verification.
⚪
Undefined Records
Addresses where our system couldn’t get a definitive response after multiple attempts. Recommend cautious approach.
💡 Need custom segmentation? Ask us about additional filtering options when you place your order.
💰 Pricing & Turnaround Time
Exclusively for customers who have purchased email lists or databases from MediumAxis.
* Turnaround Time: For larger volumes, 1M emails processed within 10 days. Times are estimates and begin once order is confirmed.
📋 How to Order Your Validation Service
Ordering is simple and secure. We use the original data from your purchase to ensure privacy and accuracy.
Purchase
Buy your desired email list or database from the MediumAxis store.
Contact Us
Via Contact Form or live chat. Provide your Order Number and specify the validation tier you need.
We Process
We retrieve data from your order and run it through our validation cluster. No file uploads needed from you.
You Receive Results
Secure, encrypted download link for the four result files. Processed data is immediately deleted from our validation servers.
💡 Need to validate only a portion of your list or a custom file? We can accommodate that. Simply specify your needs when you contact us.
❓ Frequently Asked Questions
What is the difference between the four result files?
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🚫 Excluded: Filtered out: generic role accounts (info/admin) or blacklist/keyword matches.
❌ Bad: Definitively invalid: syntax errors, non-existent domains, or clear server rejection.
⚪ Undefined: No clear response from recipient’s mail server after multiple attempts.
Why is email validation not 100% accurate?
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What if I need to validate more than the free 50k emails?
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How do you ensure the security of my data?
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✨ Ready to Clean Your List?
Don’t let outdated data undermine your marketing efforts. Ensure your MediumAxis list performs at its peak.
🚀 Contact Us Today to Start Validation
This service is subject to our Terms of Service and GDPR/Legal Compliance policies.
We do not validate lists not purchased from MediumAxis.
