Short intervals in sending and receiving messages.This results in duplication of the emails.
If the rules are configured incorrectly, it will create confusion when you receive an email message. The reasons are many, and the possible reasons are listed below. Reasons That Result in Duplication of Email Messages
Microsoft Outlook is counted among the prominent applications offered with Microsoft Suite.
How Duplicate Items May Become Problematic for You? Try automated tool Kernel for Outlook Duplicates Remover to quickly detect and remove duplicate items from your Outlook PST mailboxes.