Risky or catch all emails don't really exist but catch all email servers accept them. These emails can bounce and hurt any domain’s email campaigns. That’s why no2bounce catch all email verification tool ensures the accuracy of your emailing list.
Catch-All Email Verification Without Risk
Most SMTP-based catch-all verifiers can tell you if a domain is active — but they can’t confirm whether a specific mailbox actually exists on a catch-all server. Since catch-all domains accept every incoming email (even invalid ones), sending live test emails can quietly hurt your sender reputation.
Here’s where no2bounce is different. Instead of firing test emails at your list, we use advanced multi-layer detection to accurately identify deilverable catch-all email addresses , delivering 97%+ accuracy while keeping your sender reputation safe.
Coverage Across Major B2B Email Providers
no2bounce supports catch-all verification across leading enterprise mail infrastructures, including:
Microsoft Outlook 365
Google Workspace
Proofpoint
Mimecast
Cisco
In addition, we provide coverage for thousands of smaller and long-tail mail hosting providers globally.
Get Results Instantly!
no2bounce's catchall verifier provides a complete validated email list instantly, providing the highest possible accuracy for your campaign. Sign up for our catch-all emails validation today!
Everything you need to know about the no2bounce catch all email verifier.
What is a catch-all email validation?
Catch all verification tells you whether a domain will accept *any* email sent to its domain, even addresses that do not exist. no2bounce's catch-all email verifier accomplishes this by sending actual verification requests to domains that accept all mail, tagging them for you.
What does catch-all mean in email verification?
"Catch-all" is mail domains configured to accept any email sent to them even if the specific mailbox does not exist. Although it keeps away from bounces, it complicates the determination of valid recipients, so these email addresses are unsafe to send to.
Are catch-all emails safe to send to?
Catch-all domains bring engagement risks since the inbox may not belong to your intended audience. no2bounce flags these addresses as "risky," recommending monitoring or segmenting them rather than sending bulk campaigns.
How to verify catch-all emails?
no2bounce catch all verifier initially validates the syntax and format of the email address. Next, it does an SMTP validation without actually sending an email. If it is catch-all marked, it does the advanced domain-level validations to test the address more thoroughly.
How accurate is your catch all email verification?
no2bounce prioritizes high accuracy with AI-driven detection and real-world verification. It's relied upon by leading teams worldwide to provide trusted catch-all validation or risky email verification, assisting in safeguarding your deliverability and reputation.
How does an email verifier handle catch-all email addresses?
An catch all verifier like no2bounce detects catch-all domains that will accept all emails, valid or not. Because the server never refuses an address, the verifier marks them as "risky" rather than confirming. This prevents you from having high bounce rates and to maintain healthy sender reputation.
What do no2bounce email verification scores and statuses indicate?
no2bounce email verification scores and statuses help you understand how safe each email address is for sending. These insights allow you to evaluate deliverability risk, make smarter campaign decisions, reduce bounce rates, and maintain a strong sender reputation.
99 → Deliverable: Safe to send with very high deliverability. 99 → Deliverable / Accept All: Low-risk catch-all domain; generally safe with slight uncertainty 50 → Risky / Accept All: Moderate risk; mailbox existence cannot be fully confirmed. 0 → Undeliverable: Invalid email that will hard bounce and should be removed. 0 → Undeliverable / Accept All: Very high risk despite catch-all status; avoid sending
