Reduce bounce risk
Invalid or outdated addresses can increase bounce risk. Lucenri helps you find addresses that should be reviewed or removed before sending.
Email verification platform
Email Verification for Cleaner Lists
Lucenri helps you identify invalid, risky, disposable, and uncertain email addresses before you send. Verify a single address or upload a list, then review clear results before your next campaign.
New accounts currently receive 250 welcome credits.
- GDPR Ready
- DNS & MX Validation
- Bulk Verification
- API Access*
- Privacy First
- 250 Welcome Credits
*API access is available on eligible plans.
Why email verification matters
Email lists change over time. Addresses become inactive, domains change, and temporary inboxes can enter your database. Verification helps you review list quality before a campaign reaches the send button.
Spot risky contacts
Some addresses show signals that deserve extra attention, such as uncertain server behavior or other risk indicators.
Improve list quality
Clear result categories help you separate addresses that look usable from addresses that may lower the quality of your campaign data.
Support sender reputation
Cleaner lists support better deliverability by improving the quality of the addresses you choose to contact.
How Lucenri email verification works
Lucenri turns email verification into a simple workflow: submit addresses, run layered checks, review the results, and download what you need.
Enter an email or upload a list
Start with a single address or upload a CSV or TXT file for bulk verification.
Run layered checks
Lucenri evaluates each address with syntax, domain, DNS, MX, risk, and available mailbox signals.
Review result categories
Results are grouped into practical categories such as valid, invalid, risky, disposable, and catch-all or uncertain.
Download results
Export your results so your team can update lists, review risky contacts, and prepare cleaner campaign data.
What Lucenri checks
Lucenri uses multiple verification signals to help you understand whether an address is likely to be useful, risky, or invalid.
Syntax
Lucenri checks whether an email address follows a valid email format before deeper checks continue.
Domain
Lucenri reviews the domain portion of the address to help identify domain-level issues.
DNS
DNS checks help confirm whether the domain has the records needed to support email activity.
MX
MX checks look for mail exchange records that indicate where a domain receives email.
Disposable email detection
Lucenri helps identify temporary or disposable email addresses so they can be reviewed separately.
Catch-all and risk signals
Some domains accept many addresses even when a mailbox may not exist. Lucenri treats these as uncertain and uses additional risk signals to help you decide what to do next.
Mailbox and deliverability signals
Lucenri uses mailbox signals where available and combines them with deliverability-related checks to support a more cautious result.
Understand every verification result
Lucenri organizes verification results into clear categories so you can review your list before sending. These categories are decision-support signals, not delivery guarantees.
Valid
The address shows positive verification signals at the time of the check.
Invalid
The address shows signals that indicate it is not suitable for sending.
Risky
The address may need review before use because Lucenri found signals that require caution.
Disposable
The address appears to use a temporary or disposable email provider.
Catch-all or uncertain
The domain may accept many addresses, or the available signals may not be enough to confirm the mailbox with confidence.
A valid result does not guarantee delivery or inbox placement. Verification results reflect signals available at the time of the check, and recipient mail servers may change behavior later.
Bulk email verification for CSV and TXT lists
Need to verify a full list? Lucenri supports CSV and TXT bulk uploads with downloadable results, credits per address, and clear review categories.
Learn the upload workflow, background processing, downloads, and limits on the dedicated bulk page.
Privacy-first email list processing
Email lists can contain personal data. Lucenri is designed to process uploaded addresses for verification, keep retention limited, and give users clear information about how data is handled.
Encrypted connections
Lucenri processes verification requests over encrypted connections.
Limited retention
Verification results and uploaded data are retained for up to 72 hours and removed in line with Lucenri’s retention policy.
No resale of uploaded lists
Uploaded lists are not sold or used for Lucenri marketing.
GDPR/AVG-ready processing
Lucenri is designed with privacy-first processing aligned with GDPR/AVG standards.
Frequently asked questions
What is email verification?
Email verification is the process of checking email addresses for signals that help determine whether they are valid, risky, disposable, uncertain, or unsuitable for sending. Lucenri uses layered checks to help you review list quality before a campaign.
Why should I verify emails before sending?
Verifying emails helps reduce bounce risk and improves the quality of the addresses you choose to contact. It can help you identify invalid, risky, disposable, or uncertain contacts before they affect your campaign data.
Which file formats can I upload?
Lucenri supports CSV and TXT uploads for bulk email verification. Bulk scans use credits per verified address, and per-upload limits may apply.
What does a risky result mean?
A risky result means Lucenri found signals that should be reviewed before sending. Risky addresses are not always invalid, but they may require more caution than addresses with stronger positive signals.
How does Lucenri handle catch-all emails?
Some domains are configured to accept many email addresses, even when a specific mailbox may not be confirmed. Lucenri treats these as catch-all or uncertain results and uses additional risk signals to help you review them.
Does a valid result guarantee delivery?
No. A valid result means Lucenri found positive verification signals at the time of the check. It does not guarantee delivery or inbox placement, because recipient servers and sending conditions can change.
How long does Lucenri retain verification data?
Verification results and uploaded data are retained for up to 72 hours. Download your results within that period if you need to keep a copy.
Can I start for free?
Yes. New accounts currently receive 250 welcome credits, which can help you start testing Lucenri before choosing a paid option.
Does Lucenri provide an API?
API access is available on eligible plans. Teams can use it to integrate email verification into applications, CRMs, or signup workflows.
Can Lucenri confirm every mailbox?
It is not possible to confirm every mailbox in every situation. Some providers limit mailbox checks, and catch-all domains may remain uncertain. Lucenri uses mailbox signals where available and combines them with other verification signals.
What happens to disposable email addresses?
Disposable email addresses are identified as a separate result type so you can review or remove them from your list before sending.
Are uploaded lists sold or used for marketing?
No. Uploaded lists are processed for verification and are not sold or used for Lucenri marketing.
Verify your list before your next send
Start with a single email address or upload a list. Lucenri helps you review invalid, risky, disposable, and uncertain contacts so you can work with cleaner email data.