Dear developers, from the beginning of using Zimbra Desktop, my "Sent" folder cannot be synchronized automatically, but I can still synchronize by entering the sent folder and manually clicking "Send/Receive" button.

The e-mail server I connect to is "MS Exchange 2010" and I set protocol as "MS Exchange IMAP" in my Zimbra setting. The server has "Sent Items" instead of "Sent" as its folder name. I think it's related to this problem.

Here's my error report:

Code:
Product name:    Zimbra Desktop
Product version: 7.0.1
Build ID:        10791
Release type:    GA
OS Platform:     Linux i386 2.6.38-10-generic-pae
Time of event:   2011-08-08 18:18:34
Error type:      UID SEARCH failed:  The specified charset is not supported.
Item ID:         5816
Error summary:   Append message failed

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Affected data - PLEASE REMOVE ANY SENSITIVE INFORMATION (size=110):
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Local folder: /Sent
Failed request: C72 UID SEARCH CHARSET UTF-8 SUBJECT <literal 67 bytes> SENTON 16-Jun-2011

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Failure details - PLEASE REMOVE ANY SENSITIVE INFORMATION
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com.zimbra.cs.mailclient.CommandFailedException: UID SEARCH failed:  The specified charset is not supported.
        at com.zimbra.cs.mailclient.imap.ImapRequest.failed(ImapRequest.java:210)
        at com.zimbra.cs.mailclient.imap.ImapRequest.failed(ImapRequest.java:206)
        at com.zimbra.cs.mailclient.imap.ImapRequest.checkStatus(ImapRequest.java:126)
        at com.zimbra.cs.mailclient.imap.ImapRequest.sendCheckStatus(ImapRequest.java:112)
        at com.zimbra.cs.mailclient.imap.ImapConnection.doSearch(ImapConnection.java:423)
        at com.zimbra.cs.mailclient.imap.ImapConnection.uidSearch(ImapConnection.java:408)
        at com.zimbra.cs.datasource.imap.ImapAppender.appendSlow(ImapAppender.java:157)
        at com.zimbra.cs.datasource.imap.ImapAppender.append(ImapAppender.java:84)
        at com.zimbra.cs.datasource.imap.ImapAppender.appendMessage(ImapAppender.java:69)
        at com.zimbra.cs.datasource.imap.ImapFolderSync.appendMsgs(ImapFolderSync.java:584)
        at com.zimbra.cs.datasource.imap.ImapFolderSync.finishSync(ImapFolderSync.java:434)
        at com.zimbra.cs.datasource.imap.ImapSync.finishSync(ImapSync.java:371)
        at com.zimbra.cs.datasource.imap.ImapSync.syncFolders(ImapSync.java:244)
        at com.zimbra.cs.datasource.imap.ImapSync.importData(ImapSync.java:163)
        at com.zimbra.cs.datasource.imap.ImapSync.importData(ImapSync.java:135)
        at com.zimbra.cs.offline.OfflineImport.importData(OfflineImport.java:94)
        at com.zimbra.cs.datasource.DataSourceManager.importData(DataSourceManager.java:312)
        at com.zimbra.cs.datasource.DataSourceManager.importData(DataSourceManager.java:276)
        at com.zimbra.cs.mailbox.DataSourceMailbox.syncAllLocalDataSources(DataSourceMailbox.java:441)
        at com.zimbra.cs.mailbox.DataSourceMailbox.sync(DataSourceMailbox.java:471)
        at com.zimbra.cs.mailbox.DataSourceMailbox.syncOnTimer(DataSourceMailbox.java:408)
        at com.zimbra.cs.mailbox.SyncMailbox$1.run(SyncMailbox.java:278)
        at java.util.TimerThread.mainLoop(Unknown Source)
        at java.util.TimerThread.run(Unknown Source)

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