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Email verification
Email Verification & Email Validator: check one address or a whole list
Check one email address or upload a CSV list. Get a Valid, Invalid, Catch-all or Unknown result, then decide what to send, suppress or review. Prepare TXT lists as CSV before upload.
1,000 free validations every month · No credit card required
How Email Verification Works
Email verification reviews available address, domain and mail-server signals before you rely on an email address. Start with one contact or a whole list, then use the result to decide your next step.
01
Add an address or a list
Check one authorized address, or prepare a CSV from your CRM, newsletter, event or prospecting workflow. Keep the original file and source row IDs; convert TXT lists to CSV locally.
02
Review the result
See Valid, Invalid, Catch-all or Unknown for one address, or review the same result groups across your list.
03
Take the next action
Move valid contacts forward, suppress invalids and review uncertain results. For bulk checks, export the segments you need for your next campaign or CRM import.
A big list can hide a small leak
Most list problems do not look dramatic inside a spreadsheet. They show up later as bounces, messy segments, wasted sends, and teams wondering why a campaign underperformed.
Raw CSV workflow
A raw export can make a team feel ready because the file looks full. Under the surface it mixes active buyers with stale roles, old jobs, throwaway signups, invalid domains, duplicates and unresolved catch-all rows. The campaign starts with volume, but not clarity.
Verified list workflow
The same file becomes clear result groups before the send. Teams see which rows are Valid, Invalid, Catch all, or Unknown, then decide what moves forward, what gets suppressed and what needs review, instead of treating the whole CSV as one equally safe audience.
What to expect
before you upload
What goes in, what comes out, and what happens to your data.
Going in
Your file
File formats
CSV; convert TXT to CSV first
Column mapping
Review columns and headers in the upload preview
Processing time
Wait for the job to finish; timing varies by list
Coming out
Your results
Result groups
Valid, Invalid, Catch all, Unknown
Duplicates
Review duplicate exclusions and reconcile exported rows
Unknown results
Never charged. 0 credits
Your data
What we do with it
In transit
Encrypted
Use
Used for verification only
Sharing
Never sold, shared or resold as data
Review list quality
before you send
Use verification results to separate invalid and uncertain addresses before a campaign. Review them alongside your sending practices: verification does not guarantee future delivery or inbox placement.
4
results
Valid, Invalid, Catch-all and Unknown
CSV
upload
Prepare TXT lists as CSV before upload
1
address
Check one contact before the next step
Email Validator Results:
Valid, Invalid, Catch-all, Unknown
Each address receives one of these results, whether you check it individually or as part of a list.
Use the status to decide what to send, suppress or review.
Status
What it means
Typical handling
Valid
The address passed the checks available at the time of verification.
Continue under your contact policy. A valid result does not establish consent or guarantee future delivery or inbox placement.
Invalid
The address doesn't exist or the domain can't receive mail.
Suppress. Sending here is what causes hard bounces.
Catch all
The domain accepts mail for any address, so the mailbox can't be confirmed.
Keep separate for review. A catch-all result does not confirm the individual mailbox or permission to contact it.
Unknown
The server gave no definitive answer: greylisting, rate limiting or anti-probing.
Hold for review. These never cost you a credit.
email verification
Verify One Email vs Bulk List
Check one address before your next action, or verify a whole list before a campaign or CRM import. Choose the workflow that matches the number of contacts you need to review.

Built for real list work
CSV list preparation
Convert TXT to CSV locally and check the current sample format. Keep stable source IDs and a duplicate map so every exported row can be traced back to your original list.
Segmented result groups
Separate Valid, Invalid, Catch all and Unknown results. Track excluded duplicates, pending checks, failures and missing results separately; an upload or timeout is not a Valid result.
Reconcile before re-importing
Inspect the export columns and match results to source IDs. Exported rows, unique addresses and charged validations may differ. Keep duplicate exclusions so the same contact is not sent to twice.
For guided preparation with a compatible AI agent, review the EmailAwesome product skill reference. It provides instructions; account access and completed verification remain separate steps.
USE CASE
Verified B2B Lead Lists for Agencies
Turn your authorized B2B records into a client delivery your team can explain. Verify addresses with EmailAwesome, then document sources, duplicates, coverage, and records that still need review.
01
Agree on the delivery rules
02
Verify and reconcile the list
03
Prepare the client handoff
Best for:
B2B lead list delivery
Skills
EmailAwesome product skill
Check your next list with the AI you already use.
Connect to EmailAwesome with a compatible AI agent. Start with your account, review current credits and get guided through your first authorized verification.
TRY A TASK
Copy a complete prompt. Paste it into your AI.
Skill instructions are free. A product account is required, and current usage limits apply. Copying a prompt does not install the skill or authorize payment. Use only your own or authorized data. Email verification does not establish consent or identity, or guarantee inbox placement. Review results before outreach.
4.5
Choose the plan that fits you
1,000 free monthly validations
The Warm-up Tool is included in every plan for a limited time.
Warm your domain, support better inbox placement, and protect your sender reputation from day one.
Warm your domain, support better inbox placement, and protect your sender reputation from day one.
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/month
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Successful verifications
The Warm-up Tool is included in every plan for a limited time.
Warm your domain, support better inbox placement, and protect your sender reputation from day one.
Warm your domain, support better inbox placement, and protect your sender reputation from day one.
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/month
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Successful verifications
Apply Coupon
The Warm-up Tool is included in every plan for a limited time.
Warm your domain, support better inbox placement, and protect your sender reputation from day one.
Warm your domain, support better inbox placement, and protect your sender reputation from day one.
This is some text inside of a div block.
/month
This is some text inside of a div block.
This is some text inside of a div block.
Successful verifications
The Warm-up Tool is included in every plan for a limited time.
Warm your domain, support better inbox placement, and protect your sender reputation from day one.
Warm your domain, support better inbox placement, and protect your sender reputation from day one.
This is some text inside of a div block.
/month
This is some text inside of a div block.
This is some text inside of a div block.
Successful verifications
The Warm-up Tool is included in every plan for a limited time.
Warm your domain, support better inbox placement, and protect your sender reputation from day one.
Warm your domain, support better inbox placement, and protect your sender reputation from day one.
This is some text inside of a div block.
/month
This is some text inside of a div block.
This is some text inside of a div block.
Successful verifications
The Warm-up Tool is included in every plan for a limited time.
Warm your domain, support better inbox placement, and protect your sender reputation from day one.
Warm your domain, support better inbox placement, and protect your sender reputation from day one.
This is some text inside of a div block.
/month
This is some text inside of a div block.
This is some text inside of a div block.
Successful verifications
The Warm-up Tool is included in every plan for a limited time.
Warm your inboxes, support better deliverability, and protect your sender reputation from day one.
Warm your inboxes, support better deliverability, and protect your sender reputation from day one.
Accepted payment methods
Payments processed by Stripe.
FAQs
Email Verification FAQ
What does email verification actually check?
Email verification evaluates available address and domain signals before a workflow relies on an email address. Depending on the result, it can identify format or domain issues, mail infrastructure signals, disposable patterns, and uncertainty such as catch-all or unknown outcomes. It does not prove consent, future delivery, inbox placement, or ongoing mailbox ownership.
Is there a free email verifier with no credit card required?
Yes. EmailAwesome's free plan requires no credit card and includes 1,000 verifications per month, so you can upload a list or check a single address before committing to a paid plan. Before creating an account anywhere, check the signup flow first: some tools label a plan as free but still require card details to activate it.
Do you charge for Unknown results?
No. EmailAwesome does not charge for Unknown results — only conclusive verifications count toward your plan.
How often should I verify my email list?
Verify before every campaign send, especially if the list includes third-party data from Apollo or ZoomInfo. B2B email data decays at 20–30% annually, meaning a list verified six months ago may already contain a significant percentage of invalid addresses. Any list inactive for 90 or more days should be fully re-verified before reactivation.
How long does it take to clean a CSV with 100,000 emails?
Processing time varies with the list and receiving mail-server responses. Follow the job status in your account and wait for completion before exporting. A pending, failed or timed-out check is not a final verification result; reconcile all exported rows with your source file.
Why can't I just use Excel to clean my email list?
Spreadsheet software can only perform basic text formatting checks (like looking for spaces or missing "@" symbols). Excel cannot connect to external mail servers to verify if a user's inbox is active, full, or disabled. You need an active network tool to prevent hard bounces.
Is it secure to upload my customer data to a bulk validator?
Yes. Your file is processed in memory, results are encrypted, and the original CSV is purged from our servers shortly after cleaning completes. We never sell or share the data, and it is never used to build a marketing database.
What formats do you accept for bulk uploads?
Prepare a CSV file using the current sample format. Convert TXT lists to CSV locally first. Keep source row identifiers, review the headers and upload preview, and check exclusions and the credit estimate before confirming verification.





