Yes, duplicate emails are a common issue when merging PST files manually. This frequently happens when more than one PST file has the same emails, contacts, calendars or attachments. Manual combining lacks built in duplicate detection & leading to messy mailboxes and confusion.

We recommend using the Mailvita Merge PST for Mac Tool to fix this issue. It is a top solution created particularly for people who use a Mac. This tool helps you combine multiple PST files without creating duplicates. It merges the data in a clever way to keep the Outlook file clean.

Some Important Features About It

While merging, it automatically finds and deletes duplicate items such as emails, contacts and other mailbox items.

Keeps the original folder structure after combining, which keeps your Outlook neat and tidy.

Allows users to select specific folders or items to merge & reducing the chances of interfering with data.

Works with PST files of all kinds and sizes.

You don't need to install Microsoft Outlook to use the tool.

The tool is easy to use & even for people who are not tech-savvy.

Merges big PST files quickly and without slowing down the system.

Mailvita Merge PST for Mac Tool is an accurate method to merge files without duplicates, whether you are a business user with many accounts or an individual user combining backup files. It makes sure that your final PST file is clean, small and ready to use, without any extra data.

Visit here: https://www.mailvita.com/merge-pst-for-mac/