Every invalid send damages your sender reputation. Listclean removes the risk before it costs you.
No setup. No learning curve. Upload, verify, download. Your list comes back clean with every column and field preserved exactly as uploaded.
Drop a CSV or TXT file up to 500K rows. All columns, names, tags, and custom fields are preserved throughout.
Syntax, MX records, SMTP handshake, catch-all detection, disposable filters, spam trap detection and AI scoring in under 2 seconds per address.
Export only the addresses you want to keep. Full status breakdown included. Your data is permanently deleted from our servers after download.
Bounce rates above 2% trigger ESPs to route your mail to spam or block you entirely. Every invalid send chips away at the deliverability you have spent months building.
High bounce rates trigger inbox providers to route your campaigns to spam or block your domain entirely.
bounce threshold before ESPs take action
Spam traps hidden in old lists can blacklist your domain overnight, affecting every campaign you send.
of any email list decays every single year
You pay to send to addresses that will never convert. Clean lists cut costs and lift ROI from the very first campaign.
higher open rates on verified clean lists
Bounce rates above 2% trigger ESPs to route your mail to spam or block you entirely. Every invalid send chips away at the deliverability you have spent months building.
Once invalid addresses are removed, ESPs see clean sending patterns and restore your score within 2 to 3 campaign cycles.
Removing dead weight means your remaining contacts are genuinely engaged. Open and click rates improve from the very next send.
Higher sender scores mean Gmail, Outlook, and Yahoo route your campaigns to the primary inbox, not promotions or spam.
See how teams upload lists, verify individual emails, monitor results, integrate the API, and generate verified addresses from one verification platform.
Drop a CSV or TXT file of any size. Listclean processes every address through seven verification layers and hands you back a clean, export-ready list with every column intact.
Track verification activity over time by day, list, or API call. See exactly what was cleaned, what was flagged, and how your list health trends.
Spot-check any contact before adding them to a campaign or CRM. Combines address quality, domain readiness, and risk signals in a single instant result.
Integrate verification directly into signup forms, CRM imports, and outreach tools. One API token. One credit per billable result. No subscriptions, no surprises.
Generate likely business email patterns from a name and domain, then verify each candidate before it enters your outreach workflow. Stop guessing, start sending.
Protect your sender reputation. Reduce bounces. Boost deliverability.
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