Why does my Outlook keep receiving duplicate messages?

There are a couple of situations which may cause Outlook to download duplicate messages:

KB292249: Outlook Downloads Messages from a POP3 Server Twice

KB317945: Mail Retrieval Problems Occur When You Receive POP Mail

KB284404: Password Prompt, Duplicate Messages Appear If Outlook Profile Has Two POP3 Accounts

KB289942: POP3 Headers Are Duplicated


Using Anti-Virus Software
Many of the anti-virus programs that scan email can cause this issue as well. When the messages are large, the software causes a 'timeout' to the server before it sends back a flag that id's the message as being read. As a result you receive the message over and over.

How do I get it to stop?
The easiest and fastest solution to this problem is to log-in to the mail server and delete your mail message that is causing the problem - or all of them for a fresh start. (NOTE: make sure that you have downloaded your messages first just in case!) Follow these steps to delete your messages:
Go to www.cityscope.net home page.
Enter your USERNAME (without the @cityscope.net) and then your password
Once logged in click the TOGGLE ALL (this will put a check in the box before the email messages.
Then click the "DELETE" button.
If your mail is looping one message over and over then simply delete that one message!

 

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