Contacts Deduplicator

The DeDeduplicator works on exact duplicates.

It compares Subject, Date-time, Sender and Recipients info and Message ID as @Olivia_Rust wrote in her post in the following thread.

Deduplicator Support page documentation

https://support.emclient.com/index.php?/Knowledgebase/Article/View/122/6/i-have-duplicate-emails-contacts-events-or-tasks—how-do-i-get-rid-of-them

Note: Before running the deduplicator make a manual backup first via “Menu / Backup” incase you need to restore for any reason. You can see when the backup is complete in “Show Operations” via the dropdown on the right of Refresh.