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Guide

How to Clean Your Email List Step by Step

Prepare and deduplicate the list, verify every address, review the result mix, apply a documented policy, export the clean segment, and record what changed.

Prepare

Back up the original list. Deduplicate. Normalize formatting. Note the source and age of each segment.

Verify and decide

Run bulk verification. Review deliverable, risky, invalid, and unknown shares.

Apply policy, export decisions with reason codes, and suppress undeliverable contacts in your ESP.

Action checklist

  • Back up the original list
  • Review deliverable, risky, invalid, and unknown
  • Export decisions with reason codes
Ready when you are

Put this guide into practice

Verify a list or wire the API into your forms — same results in the dashboard, jobs, and API.