Remove Duplicate Contacts

Generally speaking, if you save a new contact with the same name or email as one that already exists in your Contacts folder, then Outlook usually brings up a dialog box that enables you to update it or add it as a new contact. However, the same cannot be said if you import your Contact lists from another email client.
Remove Duplicate Contacts is a lightweight application designed to help you clear your contact lists of duplicates so that you can find users and addresses faster and easier.

Borrows the looks and feels of the Outlook version you have installed

Following a quick and straightforward setup, you are required to configure the utility before you can use it. While it may sound daunting, configuration, in this case entails specifying your username and password for Outlook as well as the contact list folder.
You will be happy to learn that you can also access the tool from the toolbar and run a scan to detect and then delete the contacts that are duplicates and make finding the right ones easier. It goes without saying that the tool borrows from the looks and feels of Outlook and does not put too much string on it while running.

Simple and straightforward functionality

Functionality-wise, the extension is as simple as it gets, meaning that once you run it, the tool detects the duplicates and marks them so that you can easily find them later one. Unfortunately, you need to access the Contacts from the List menu to view them and then decide whether you want to delete them.
Then again, lets us not forget that Outlook enables you to easily sort lists based on categories, so you can preview them and erase them all at the same time.

A useful, but minimalistic tool for deleting duplicate contacts

All things considered, if you are having a hard time finding the correct recipients in your email client and you want to make sure that you send the right messages to the right persons, then Remove Duplicate Contacts can help you clean your addresses and users.