Upload your contacts. StellarClean verifies every address, flags the risky ones, removes the junk, and hands you back a list that actually works.
No software to install. No complicated setup. Just results.
Paste emails, drag a CSV, or upload a file. We accept any format — we'll find the addresses.
Every address is checked for syntax, DNS/MX records, disposable domains, role-based prefixes, and more.
Get your cleaned list as a CSV. Safe, risky, and invalid — clearly labeled so you decide what to keep.
Try it right now — free preview for up to 10 emails, no account needed.
Drag & drop a CSV file here, or click to browse
Supports .csv and .txt files
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Every email goes through multiple layers of verification.
Catches typos, missing @ signs, invalid characters, and malformed addresses before they waste a send.
Verifies the domain actually has mail servers configured to receive email. No MX = no delivery.
Identifies 120+ throwaway email providers — Mailinator, Guerrilla Mail, TempMail, and more.
Flags addresses like info@, admin@, support@ — they deliver, but rarely engage.
Catches common domain misspellings — gmial.com, yaho.com, hotmal.com — and suggests corrections.
Identifies suspicious patterns like auto-generated addresses (a1234567@domain.com) that signal bot signups.
Start free. Scale when you're ready.
Perfect for trying it out or cleaning small lists occasionally.
For marketers and small businesses who send regularly.
For teams that need high-volume verification and API access.
Need leads to clean? MrsNudgelyLeads builds targeted, verified lists so you can start with quality from day one.
Your sender reputation is only as good as your list. Make it spotless.