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Find Duplicate Signups in a Newsletter List (Gmail Aware)

Find duplicate subscribers in a newsletter or webinar signup list. Matching ignores upper case, Gmail dots and +tags, so jane.doe+promo@gmail.com and janedoe@gmail.com count as one person. Duplicates are kept and flagged so you can review them first.

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Contact List Cleaner: Fix Phones, Emails & Names, Dedupe
Contact List Cleaner: Fix Phones, Emails & Names, Dedupedata-done-right/contact-list-cleaner
Row
Name
Email
Email valid
+5 fields
Text
Number
Boolean
List
Object

Input

Contacts (list of objects)
email:jane.doe@gmail.com+5
name:Jane Doe+5
Find duplicates by:email
What to do with duplicates:flag
Auto-correct email domain typos:false
Maximum contacts:100

Output fields

Row
Name
Email
Email valid
Phone
Phone valid
Company
Fixes
Issues

How it works

Sign up on Apify or log in

The Contact List Cleaner: Fix Phones, Emails & Names, Dedupe Actor is ready to run with the inputs already set for "Find Duplicate Signups in a Newsletter List (Gmail Aware)". Sign up or log in and you'll land in Apify Console with a copy of this exact task.

Start the "Find Duplicate Signups in a Newsletter List (Gmail Aware)" task

The Contact List Cleaner: Fix Phones, Emails & Names, Dedupe Actor will start running based on the input automatically. You can also change all the input fields, like contacts (list of objects), find duplicates by, and more, to match your specific use case.

Receive the "Find Duplicate Signups in a Newsletter List (Gmail Aware)" output

Monitor the progress in real time. You will be notified as soon as your dataset is complete and ready for review. Each result includes data such as row, name, email, and more.

Integrate into your workflow

The final output is delivered in JSON, CSV, or Excel format, ready to be plugged into your workflow. You can also run the "Find Duplicate Signups in a Newsletter List (Gmail Aware)" task via API.

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Integrate "Find Duplicate Signups in a Newsletter List (Gmail Aware)" into your workflow

Connect "Find Duplicate Signups in a Newsletter List (Gmail Aware)" with 100+ integrations, or run it via API or MCP.

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