What Does a Verified and Unverified Email Address Mean?

Modified on Fri, 31 Jan at 7:52 PM

At Lemontaps, we indicate whether an email address is verified or unverified during email enrichment. This helps you better assess whether an email address can be used safely.


Verified Email Addresses ✅

A verified email address is one whose existence and active use can be confirmed. This is done through various technical checks, including:

  • Syntax Check: Is the email address correctly formatted?
  • Domain Check: Does the domain exist and is it active?
  • Server Validation: Does the mail server accept the address as valid?

Such a verified business address is directly associated with a specific person in the company.

The delivery probability is over 98%, making it ideal for your campaigns.



Unverified Email Addresses ☑️

An unverified email address is one whose existence cannot be definitively confirmed. This is because some companies configure their mail servers as Catch-All.


What does Catch-All mean? A Catch-All server accepts all emails sent to a specific domain, even if the email address does not exist. This means that an email sent to a non-existent address may be accepted but might never be read. As a result, it is impossible to validate the existence of this address.


Delivery probability for unverified emails: 80-90%


Recommendation: It’s best to include them in your campaigns, as they make up 30% of business opportunities.



Why is the distinction important?

By marking verified and unverified addresses, you can improve the efficiency of your email campaigns. We recommend:

  • Use verified addresses without hesitation.
  • Handle unverified (Catch-All) addresses with caution, as they are often valid but cannot be 100% verified.

With our real-time verification, Lemontaps enables you to maintain your contact lists in compliance with GDPR and efficiently. Learn more about why contact enrichment with Lemontaps is 100% GDPR-compliant here.

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