Synchronization issues: We have also observed duplicated contacts and messages resulting from sync problems with 3rd party providers.This results in multiplied occurrences of the same messages. If the frequency of your inbox update is too short Outlook might load the message into your inbox, BUT might not be able to mark messages occurrences as synchronized/loaded. Send / receive interval are too short.Incorrect account setup: In several cases, i have seen that users mistakenly defined multiple occurrences of the same email account and this results in multiple instances of each incoming email, contacts and calendar entries.Rules not configured correctly: There might be cases that two or more rules are fired upon receiving email, resulting in multiple instances of the same messages.Reasons for duplicate email in your mailboxįrom what i have seen in the past, Outlook duplicates typically origin from six main reasons: We’ll then provide some simple solutions that you can easily implement to cleanup redundant conversations, contacts and meetings from your email inbox with ease. We’ll first explain the most prevalent reasons for the most common email duplication cases. If so, keep reading, because today we’ll show you how to you can stop receiving those messages and r emove duplicated email from your mailbox without purchasing a costly remover tool. Have you ever got a bunch of redundant duplicated email items, contact persons and calendar entries in Outlook and wanted to quickly clean up these annoying duplicates so you can focus on the real stuff? Windows 7, 8, 10 and macOS (with small adjustments). If you continue to use POP, though, you’ll more than likely see this issue happen again in the future.Applies to: Office 2019, 2016, 365.

Move your old messages out of the Inbox and into those folders. Optionally, you can log in to your account using a web browser and create folders there. (That’s the nature of POP.) However, you should then file your old messages to folders and move them

This will synchronize all messages to your computer. When configuring your account in Outlook, allow it to automatically use the IMAP protocol. When those message IDs get reset, Outlook considers those to be new messages and downloads them. If you’ve chosen to leave messages on the server, the server may occasionally reset the unique message IDs that help Outlook keep track of what it has already downloaded. This is an inherent problem with the POP email protocol.

Duplicate emails in outlook 2016 on mac