Duplicate Email Check Guide

Open your spreadsheet and select the column containing email addresses.

The best way to handle duplicates is to prevent them from entering your system. Implement a "master record" strategy where each customer has one unique ID tied to their primary email. If a user tries to sign up again with the same address, your system should recognize the match and either update the existing profile or prompt the user to log in. duplicate email check

Start today. Export your main contact list. Run an exact match test. Then apply case-insensitive and fuzzy logic. Merge, clean, and then set up rules to prevent future duplicates. Your sender score—and your customers—will thank you. Open your spreadsheet and select the column containing