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:
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- Increasing Deliverability: Ensure your marketing and sales emails reach the inbox, not the spam folder or getting blocked.
- Improving Sender Reputation: Internet Service Providers (ISPs) track how many emails you send to invalid addresses. A clean list signals you are a reputable sender.
- Boosting ROI: Higher deliverability leads to better open rates, click-through rates, and conversions. Stop wasting resources on dead ends.
- Saving Time & Money: Clean data means your sales and marketing teams focus on genuine, reachable leads.
The Need for Ongoing Validation
While we rigorously compile and cross-reference our databases, B2B contact data has a natural decay rate estimated at 22.5% annually. People change jobs, leave companies, or their mailboxes become inactive. Even with our best efforts at the point of sale, data ages rapidly. Validation is the critical final step to ensure the list you use today is as accurate as possible, mitigating the natural aging process and communication churn.
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.
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- Syntax Check: Immediate rejection of emails with invalid format (e.g., missing “@” symbol, invalid characters).
- Blacklist & Keyword Filter: Emails are checked against our internal database of over 10 million blacklisted records and filtered for inappropriate or nonsensical keywords.
- Disposable & Generic Email Filter: Automatic exclusion of addresses from temporary email services and role-based accounts (e.g., info@, admin@, postmaster@).
- SMTP Verification: Our system initiates a secure session with the recipient’s mail server to verify the existence of the mailbox without sending an email. This is the most reliable method for checking deliverability.
The Validation Result: Four Segmented Files
Upon completion, you will 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 have passed all checks, including a positive SMTP response. These are your prime targets for campaigns.
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🚫 Excluded Records: Emails filtered out based on our quality rules. This includes addresses matched against our blacklists and generic role accounts (e.g., info@, admin@, office@).
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❌ Bad Records: Emails that were definitively invalid. This includes syntax errors, non-existent domains, or server rejections during SMTP verification.
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⚪ Undefined Records: Addresses where our system could not get a definitive response from the mail server after multiple attempts. We recommend a cautious approach with this segment.
Need custom segmentation? Ask us about additional filtering options when you place your order.
Pricing & Turnaround Time
This service is exclusively for customers who have purchased email lists or databases from MediumAxis.
| Service Tier | Validation Volume | Price | Turnaround Time* |
|---|---|---|---|
| Free with Purchase | Up to 50,000 emails | $0 | 24 hours |
| Additional Validation | Per 50,000 emails | $400 | 2 days |
| Validation Pass | 500,000 emails | $2,800 (Save $1,200) | 5 days |
* Turnaround Time: For larger volumes, 1 million emails are processed within 10 days. Times are estimates and begin once the 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.
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Purchase your desired email list or database from the MediumAxis store.
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Contact Us via our Contact Form or use the live chat on our website. Please provide your Order Number and specify the validation tier you need (e.g., “I’d like to use my free 50k validation,” or “I want to purchase the 500k Validation Pass”).
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We Process: We will retrieve the data from your order and run it through our validation cluster. You do not need to send us any files.
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You Receive Results: Once processing is complete, we will send you a secure, encrypted link to download 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, and we will provide instructions for secure file transfer.
Frequently Asked Questions (FAQ)
What is the difference between the four result files?
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Valid: Passed all checks, including a positive SMTP verification. Ready for your campaigns.
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Excluded: Filtered out due to being a generic role account (info/admin) or a match in our blacklist/keyword filter. These are low-quality leads.
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Bad: The email was definitively invalid (syntax error, non-existent domain, or clear server rejection).
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Undefined: Our system could not get a clear, recognizable response from the recipient’s mail server after multiple attempts.
Why is email validation not 100% accurate?
While our multi-layered process is highly accurate, we cannot guarantee 100% deliverability. Some mail servers are configured to accept all emails (to prevent probing), while others may temporarily greylist requests. Our technology provides the best possible assessment, but the dynamic nature of email systems introduces a margin of error. Please refer to our Terms of Service for our accuracy disclaimer.
What if I need to validate more than the free 50k emails?
No problem! Contact us with your requirements. We will create a custom product listing for you to purchase the additional validation credits (e.g., 50k for $400 or the 500k Validation Pass for $2,800) and provide an invoice.
How do you ensure the security of my data?
Security is paramount. Since we validate the original data you purchased, you don’t need to resend sensitive files. Our validation cluster processes the data in a secure environment and is immediately purged after the results are exported to a temporary, encrypted cloud storage. The download link we send you expires automatically after the files are retrieved.
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 your validation order!
This service is subject to our Terms of Service and GDPR/Legal Compliance policies.
We do not validate lists not purchased from MediumAxis.