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Intro: New user, have set up POP3, Yahoo, Gmail, and IMAP. Everything but IMAP is working perfectly.
The IMAP connection is to our company Exchange server which also accepts IMAP queries. Note that I did NOT use Exchange IMAP because I was unable to get that to work. So I used 'vanilla' IMAP.
My problem: Zimbra Desktop is getting each message exactly twice. Once would be sufficient.
Bugzilla
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Source
[IMAP] Double dipping to the server 
Linear Mode
