How do I prevent duplicate emails and contacts when merging PST files?

ameliaroberts

New member
It is a common issue to encounter duplicate emails or contacts as a result of merging multiple Outlook PST files. To avoid this, it is necessary to have a tool that not only integrates PSTs but also includes a duplicate removal feature.

GainTools Merge PST Tool is an option that I would suggest. It is specifically made for situations such as this and includes several beneficial features

Duplicate items emails, contacts, calendars, etc. are automatically identified and prevented from being merged.
One can join complete PST files, merge specific folders or even combine all PSTs into a single new file.
Folder hierarchy, metadata (to, cc, bcc, subject), attachments and formatting are all consistent.
It functions seamlessly with Outlook 2003 and the most recent Outlook 2021.
Add the PST, select the method of merging and you are finished no technical expertise is required.

You can safely combine PSTs with the GainTools Merge PST Tool instead of manually importing them into Outlook, which often produces duplicates. This will keep your inbox clean.
 
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