Frequently Asked Questions

Find answers to common questions about our email verification service.

Contact Support
General
Files & Formats
Verification
Billing & Plans

General Questions

Email verification is the process of checking whether email addresses in your list are valid and deliverable. You need it to reduce bounce rates, protect your sender reputation, improve email deliverability, and save money by not sending to invalid addresses. High bounce rates can lead to your emails being marked as spam or your sending domain being blacklisted.

Our email verification achieves 99.9% accuracy. We use a multi-step verification process that includes syntax checking, DNS and MX record validation, SMTP verification, and checks against our proprietary databases of known bad addresses, spam traps, and complaint records.

Absolutely. We take data security very seriously. All data transfers are encrypted using 256-bit SSL encryption. We are GDPR compliant and never share, sell, or use your email lists for any purpose other than verification. Your data is automatically deleted from our servers after processing unless you choose to keep it.

Files & Formats

We support the following file formats:
  • CSV files (comma or tab delimited) - Recommended
  • Text files (.txt)
  • Excel files (.xls and .xlsx)
  • ZIP archives containing any of the above formats
Maximum file size is 70MB per upload.

Yes! We support up to 100 columns in your CSV files. All your additional data columns (like names, addresses, custom fields) will remain intact and be included in your cleaned output file. We only need one column to contain the email addresses.

We can handle email lists of virtually any size - from a few hundred records to over 10 million emails. Our scalable infrastructure is designed to process large volumes efficiently. For very large lists (over 1 million), processing may take longer but you'll receive updates on progress.

Verification Process

Our email list verification is a comprehensive multi-step process:
  1. Syntax Check: Validates email format and structure
  2. DNS/MX Verification: Confirms domain exists and accepts mail
  3. Suppression Check: Compares against known bad addresses and complaint databases
  4. SMTP Verification: Connects to mail server to verify mailbox exists (without sending)
  5. Risk Assessment: Identifies spam traps, disposable emails, role accounts, and more

After verification, you receive a detailed report that breaks down your list by status categories:
  • Valid: Confirmed deliverable addresses
  • Invalid: Non-existent or undeliverable addresses
  • Risky: Catch-all domains or addresses that may bounce
  • Suppressed: Known complainers or problematic addresses
  • Parked: Domains that are no longer active
You can download the cleaned list or the full list with status codes for each email.

Processing time depends on list size. A list of 10,000 emails typically completes in under 30 minutes. Larger lists may take a few hours. You'll receive email notifications when your verification is complete, and you can check progress in your dashboard at any time.

You can verify as many lists as you want, up to your available credit limit. There's no restriction on the number of separate lists or files you can upload and process.

Billing & Plans

We accept all major credit cards (Visa, MasterCard, American Express, Discover) and PayPal. For enterprise accounts, we can also arrange invoicing and bank transfers. All payments are processed securely.

Monthly subscription credits reset each billing cycle. Pay-as-you-go credits typically remain valid for 12 months from the date of purchase. Check your specific plan details in your account dashboard for exact terms.

Yes! There are no long-term contracts. You can cancel your subscription at any time from your account settings. Your access will continue until the end of your current billing period, and you won't be charged again.

Yes, we do offer reseller and white-label solutions for agencies and businesses who want to offer email verification to their own clients. Please contact our sales team for more information on partnership opportunities and custom pricing.

Still Have Questions?

Can't find the answer you're looking for? Our support team is here to help you with any questions about email verification.

Contact Us

Ready to Clean Your Email List?

Start verifying your emails today and improve your delivery rates instantly.

Get Started Today