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Email List Cleaner & Deduper

Clean a mailing list up to 200,000 rows: remove duplicates, catch typos and throwaway domains, and check that every domain can actually receive mail. Nothing is uploaded.

Tool inputs stay in your browser · optional AI search sends your query

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How to use it (step by step)

  1. 1Paste your list or upload a CSV/TXT file. The tool finds the column that holds the addresses — change it if it guessed wrong.
  2. 2Tick what you want removed: duplicates, Gmail dots and +tags, throwaway domains, role addresses like info@. Typos are flagged with a suggested fix.
  3. 3Press Clean. Only domain names are looked up (to see if the domain can receive mail); the addresses stay in your browser.
  4. 4Download the clean CSV, or the removed list with the reason for every row.

Words to know

CSV export
A simple spreadsheet file (values separated by commas) that apps like Excel, Google Sheets and Meta Business Suite can save and open.

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