I am getting duplicate messages in my inbox both thru the Zimbra Client and Mozilla Thunderbird. I am using IMAP not POP 3. and Zimbra 4.5.3 Open Source edition. I have both my IMAP users having this issue. I have looked in the forms and it seems POP 3 clients have seen this and Outlook users have seen this but again I am Zimbra client and Thunderbird. I checked the messages and they all have the exact same timestamp and message id. I thought I was doing good settig ip my first Linux box and Linux based E-mail server. Never had to post anything.. til now

Any help appreciated,