Zimbra Forums

As the man says above, have you tried a different client ?
Entourage would be a different client to Thunderbird, hence the information may be deemed helpful/useful.

Did the msgtrace part, no dupes but, as it says, that'll only show in the web client right ?
Haven't enabled imap logging yet, will do that

Justed posted this to a much earlier thread on this issue but I am having the same issue since upgrading to 4.5.4
Using Entourage as an IMAP client.

Have just upgraded to 4.5.4, well a week ago, and have started to see this dupe email issue using IMAP & Entourage clients.
Release 4.5.4_GA_763.RHEL4_20070326134650 RHEL4 FOSS edition
Any specific logs I should be examining for cause ?

I get occasional reports of emails that are showing as blank with a corresponding message of "too much recursion" in the Firefox Error Console. Line reporting the error is ; if(url){html[idx++]=''+AjxStringUtil.htmlEncode(tracking)+'';}else{html[idx++]=AjxStringUtil.htmlEncode(tracking);} ...